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BOSTON MARATHON 2026

Sydney Shaffer

Bib: 16450β€’F

PA

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0:00
/ mi
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Overall
#0 / 29021
Top 33%
Gender (Female)
#0 / 12578
Top 16%
Age Group (F18-39)
#0 / 5716
Top 29%
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
22:54
3.11 mi
Rank: #11689
Start β†’ 5K
22:54 | 7:23/mi
10K
45:53
6.21 mi
Rank: #11834 (-145)
5K β†’ 10K
22:59 | 7:24/mi
15K
1:08:44
9.32 mi
Rank: #11740 (+94)
10K β†’ 15K
22:51 | 7:22/mi
20K
1:31:46
12.43 mi
Rank: #11578 (+162)
15K β†’ 20K
23:02 | 7:25/mi
HALF
1:36:45
13.11 mi
Rank: #11572 (+6)
20K β†’ HALF
4:59 | 7:19/mi
25K
1:54:38
15.53 mi
Rank: #11369 (+203)
HALF β†’ 25K
17:53 | 7:23/mi
30K
2:18:07
18.64 mi
Rank: #11090 (+279)
25K β†’ 30K
23:29 | 7:34/mi
20M
2:28:14
20.00 mi
Rank: #10877 (+213)
30K β†’ 20M
10:07 | 7:27/mi
21M
2:35:56
21.00 mi
Rank: #10643 (+234)
20M β†’ 21M
7:42 | 7:42/mi
35K
2:41:19
21.75 mi
Rank: #10540 (+103)
21M β†’ 35K
5:23 | 7:12/mi
23M
2:50:27
23.00 mi
Rank: #10266 (+274)
35K β†’ 23M
9:08 | 7:18/mi
24M
2:57:34
24.00 mi
Rank: #10091 (+175)
23M β†’ 24M
7:07 | 7:07/mi
40K
3:03:35
24.85 mi
Rank: #9873 (+218)
24M β†’ 40K
6:01 | 7:03/mi
25.2M
3:06:10
25.20 mi
Rank: #9767 (+106)
40K β†’ 25.2M
2:35 | 7:30/mi
FINISH
3:12:56
26.22 mi
Rank: #9500 (+267)
25.2M β†’ FINISH
6:46 | 6:39/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Halfβš–οΈ Balanced
via HALF
Distance13.11 mi
Time1:36:45
Pace7:23 /mi
2nd Halfβš–οΈ Balanced
Distance13.11 mi
Time1:36:11
Pace7:21 /mi
πŸ“ŠEven Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2022:547:2322:54
7:23
-
10K
6.21 mi11:47:1945:537:2422:59
7:24
+0:01
15K
9.32 mi12:10:101:08:447:2322:51
7:22
-0:02
20K
12.43 mi12:33:121:31:467:2423:02
7:25
+0:03
HALF
13.11 mi12:38:111:36:457:234:59
7:19
-0:06
25K
15.53 mi12:56:041:54:387:2317:53
7:23
+0:04
30K
18.64 mi13:19:332:18:077:2523:29
7:34
+0:11
20M
20.00 mi13:29:402:28:147:2510:07
7:27
-0:07
21M
21.00 mi13:37:222:35:567:267:42
7:42
+0:15
35K
21.75 mi13:42:452:41:197:265:23
7:12
-0:30
23M
23.00 mi13:51:532:50:277:259:08
7:18
+0:06
24M
24.00 mi13:59:002:57:347:247:07
7:07
-0:11
40K
24.85 mi14:05:013:03:357:246:01
7:03
-0:04
25.2M
25.20 mi14:07:363:06:107:242:35
7:30
+0:27
FINISH
26.22 mi14:14:223:12:567:226:46
6:39
-0:51

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:39 /mi

Average Pace

7:22 /mi

Slowest Pace

7:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

34:25

18% of race

Time at Steady Pace

2:38:31

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:24:2022:547:2322:54
7:23
#11689
10K
6.21 mi11:47:1945:537:2422:59
7:24
#11834
15K
9.32 mi12:10:101:08:447:2322:51
7:22
#11740
20K
12.43 mi12:33:121:31:467:2423:02
7:25
#11578
HALF
13.11 mi12:38:111:36:457:234:59
7:19
#11572
25K
15.53 mi12:56:041:54:387:2317:53
7:23
#11369
30K
18.64 mi13:19:332:18:077:2523:29
7:34
#11090
20M
20.00 mi13:29:402:28:147:2510:07
7:27
#10877
21M
21.00 mi13:37:222:35:567:267:42
7:42
#10643
35K
21.75 mi13:42:452:41:197:265:23
7:12
#10540
23M
23.00 mi13:51:532:50:277:259:08
7:18
#10266
24M
24.00 mi13:59:002:57:347:247:07
7:07
#10091
40K
24.85 mi14:05:013:03:357:246:01
7:03
#9873
25.2M
25.20 mi14:07:363:06:107:242:35
7:30
#9767
FINISH
26.22 mi14:14:223:12:567:226:46
6:39
#9500
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116892737273711558(Top 40%)2780(Top 22%)2780(Top 49%)
10K6.21 mi3.10 mi11834-1452839-1022839-10212054(Top 42%)2992(Top 24%)2992(Top 52%)
15K9.32 mi3.11 mi11740+942823+162823+1611558(Top 40%)2780(Top 22%)2780(Top 49%)
20K12.43 mi3.11 mi11578+1622764+592764+5911249(Top 39%)2705(Top 22%)2705(Top 47%)
HALF13.11 mi0.68 mi11572+62761+32761+311293(Top 39%)2614(Top 21%)2614(Top 46%)
25K15.53 mi2.42 mi11369+2032682+792682+7910368(Top 36%)2316(Top 18%)2316(Top 41%)
30K18.64 mi3.11 mi11090+2792596+862596+8610139(Top 35%)2333(Top 19%)2333(Top 41%)
20M20.00 mi1.36 mi10877+2132516+802516+808783(Top 30%)1820(Top 14%)1820(Top 32%)
21M21.00 mi1.00 mi10643+2342412+1042412+1047869(Top 27%)1560(Top 12%)1560(Top 27%)
35K21.75 mi0.75 mi10540+1032384+282384+288570(Top 30%)1819(Top 14%)1819(Top 32%)
23M23.00 mi1.25 mi10266+2742279+1052279+1057495(Top 26%)1425(Top 11%)1425(Top 25%)
24M24.00 mi1.00 mi10091+1752222+572222+577311(Top 25%)1429(Top 11%)1429(Top 25%)
40K24.85 mi0.85 mi9873+2182127+952127+955770(Top 20%)931(Top 7%)931(Top 16%)
25.2M25.20 mi0.35 mi9767+1062078+492078+495313(Top 18%)867(Top 7%)867(Top 15%)
FINISH26.22 mi1.02 mi9500+2671989+891989+895093(Top 18%)835(Top 7%)835(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
Γ—21
+97ft-345ft

Overall

11558

Females

2780

F18-39

2780

5K→10K

3.1 - 6.2 mi

Top 42%
Γ—5
+79ft-138ft

Overall

12054

Females

2992

F18-39

2992

10K→15K

6.2 - 9.3 mi

Top 40%
Γ—3
+67ft-78ft

Overall

11558

Females

2780

F18-39

2780

15K→20K

9.3 - 12.4 mi

Top 39%
Γ—5
+106ft-86ft

Overall

11249

Females

2705

F18-39

2705

20K→HALF

12.4 - 13.1 mi

Top 39%
Γ—2
+19ft-37ft

Overall

11293

Females

2614

F18-39

2614

HALF→25K

13.1 - 15.5 mi

Top 36%
Γ—4
+66ft-88ft

Overall

10368

Females

2316

F18-39

2316

25K→30K

15.5 - 18.6 mi

Top 35%
Γ—9
+181ft-148ft

Overall

10139

Females

2333

F18-39

2333

30K→20M

18.6 - 20.0 mi

Top 30%
Γ—5
+64ft-50ft

Overall

8783

Females

1820

F18-39

1820

20M→21M

20.0 - 21.0 mi

Top 27%
Γ—8
+106ft-24ft

Overall

7869

Females

1560

F18-39

1560

21M→35K

21.0 - 21.8 mi

Top 30%
Γ—7
+17ft-86ft

Overall

8570

Females

1819

F18-39

1819

35K→23M

21.8 - 23.0 mi

Top 26%
Γ—5
+23ft-63ft

Overall

7495

Females

1425

F18-39

1425

23M→24M

23.0 - 24.0 mi

Top 25%
Γ—6
+12ft-82ft

Overall

7311

Females

1429

F18-39

1429

24M→40K

24.0 - 24.9 mi

Top 20%
Γ—1
+6ft-20ft

Overall

5770

Females

931

F18-39

931

40K→25.2M

24.9 - 25.2 mi

Top 18%
Γ—1
+13ft-16ft

Overall

5313

Females

867

F18-39

867

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
Γ—2
+22ft-21ft

Overall

5093

Females

835

F18-39

835

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2917*
Passed By
728
Net Change
+2189
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#11689
5K β†’ 10K213358-145#11689#11834
10K β†’ 15K218124+94#11834#11740
15K β†’ 20K23674+162#11740#11578
20K β†’ HALF3428+6#11578#11572
HALF β†’ 25K23229+203#11572#11369
25K β†’ 30K34667+279#11369#11090
30K β†’ 20M22512+213#11090#10877
20M β†’ 21M2373+234#10877#10643
21M β†’ 35K1118+103#10643#10540
35K β†’ 23M2806+274#10540#10266
23M β†’ 24M18712+175#10266#10091
24M β†’ 40K220*2+218#10091#9873
40K β†’ 25.2M1071+106#9873#9767
25.2M β†’ FINISH2714+267#9767#9500
TOTALS2917*728+2189

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing