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BOSTON MARATHON 2026

Sarah Cassell

Bib: 12148 •F •Age: N/A

DC

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0:00
/ mi
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Overall
#0 / 29021
Top 27%
Gender (Female)
#0 / 12578
Top 11%
Age Group (F18-39)
#0 / 5716
Top 20%
Race Day Weather
51°/41°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
22:22
3.11 mi
Rank: #10169
Start → 5K
22:22 | 7:12/mi
10K
44:30
6.21 mi
Rank: #9870 (+299)
5K → 10K
22:08 | 7:08/mi
15K
1:06:33
9.32 mi
Rank: #9608 (+262)
10K → 15K
22:03 | 7:06/mi
20K
1:28:36
12.43 mi
Rank: #9320 (+288)
15K → 20K
22:03 | 7:06/mi
HALF
1:33:24
13.11 mi
Rank: #9291 (+29)
20K → HALF
4:48 | 7:03/mi
25K
1:50:40
15.53 mi
Rank: #9093 (+198)
HALF → 25K
17:16 | 7:08/mi
30K
2:13:24
18.64 mi
Rank: #8889 (+204)
25K → 30K
22:44 | 7:20/mi
20M
2:23:27
20.00 mi
Rank: #8800 (+89)
30K → 20M
10:03 | 7:24/mi
21M
2:31:04
21.00 mi
Rank: #8648 (+152)
20M → 21M
7:37 | 7:37/mi
35K
2:36:17
21.75 mi
Rank: #8539 (+109)
21M → 35K
5:13 | 6:59/mi
23M
2:45:16
23.00 mi
Rank: #8395 (+144)
35K → 23M
8:59 | 7:11/mi
24M
2:52:20
24.00 mi
Rank: #8284 (+111)
23M → 24M
7:04 | 7:04/mi
40K
2:58:34
24.85 mi
Rank: #8236 (+48)
24M → 40K
6:14 | 7:18/mi
25.2M
3:01:08
25.20 mi
Rank: #8158 (+78)
40K → 25.2M
2:34 | 7:27/mi
FINISH
3:07:52
26.22 mi
Rank: #7962 (+196)
25.2M → FINISH
6:44 | 6:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:33:24
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:34:28
Pace7:13 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3522:227:1222:22
7:12
-
10K
6.21 mi11:12:4344:307:1022:08
7:08
-0:04
15K
9.32 mi11:34:461:06:337:0922:03
7:06
-0:02
20K
12.43 mi11:56:491:28:367:0822:03
7:06
0:00
HALF
13.11 mi12:01:371:33:247:084:48
7:03
-0:03
25K
15.53 mi12:18:531:50:407:0817:16
7:08
+0:05
30K
18.64 mi12:41:372:13:247:1022:44
7:20
+0:12
20M
20.00 mi12:51:402:23:277:1110:03
7:24
+0:04
21M
21.00 mi12:59:172:31:047:127:37
7:37
+0:13
35K
21.75 mi13:04:302:36:177:125:13
6:59
-0:38
23M
23.00 mi13:13:292:45:167:128:59
7:11
+0:12
24M
24.00 mi13:20:332:52:207:117:04
7:04
-0:07
40K
24.85 mi13:26:472:58:347:126:14
7:18
+0:14
25.2M
25.20 mi13:29:213:01:087:122:34
7:27
+0:09
FINISH
26.22 mi13:36:053:07:527:116:44
6:37
-0:50

Checkpoint Splits Visualizations

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

📈Pace 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

6:37 /mi

Average Pace

7:10 /mi

Slowest Pace

7:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

2:18:40

74% of race

Time at Steady Pace

49:12

26% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:10 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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 mi10:50:3522:227:1222:22
7:12
#10169
10K
6.21 mi11:12:4344:307:1022:08
7:08
#9870
15K
9.32 mi11:34:461:06:337:0922:03
7:06
#9608
20K
12.43 mi11:56:491:28:367:0822:03
7:06
#9320
HALF
13.11 mi12:01:371:33:247:084:48
7:03
#9291
25K
15.53 mi12:18:531:50:407:0817:16
7:08
#9093
30K
18.64 mi12:41:372:13:247:1022:44
7:20
#8889
20M
20.00 mi12:51:402:23:277:1110:03
7:24
#8800
21M
21.00 mi12:59:172:31:047:127:37
7:37
#8648
35K
21.75 mi13:04:302:36:177:125:13
6:59
#8539
23M
23.00 mi13:13:292:45:167:128:59
7:11
#8395
24M
24.00 mi13:20:332:52:207:117:04
7:04
#8284
40K
24.85 mi13:26:472:58:347:126:14
7:18
#8236
25.2M
25.20 mi13:29:213:01:087:122:34
7:27
#8158
FINISH
26.22 mi13:36:053:07:527:116:44
6:37
#7962
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 mi10169195619569265(Top 32%)1592(Top 13%)1592(Top 28%)
10K6.21 mi3.10 mi9870+2991825+1311825+1319582(Top 33%)1699(Top 14%)1699(Top 30%)
15K9.32 mi3.11 mi9608+2621714+1111714+1119265(Top 32%)1592(Top 13%)1592(Top 28%)
20K12.43 mi3.11 mi9320+2881610+1041610+1048588(Top 30%)1383(Top 11%)1383(Top 24%)
HALF13.11 mi0.68 mi9291+291604+61604+69038(Top 31%)1521(Top 12%)1521(Top 27%)
25K15.53 mi2.42 mi9093+1981546+581546+588278(Top 29%)1346(Top 11%)1346(Top 24%)
30K18.64 mi3.11 mi8889+2041505+411505+418241(Top 28%)1478(Top 12%)1478(Top 26%)
20M20.00 mi1.36 mi8800+891503+21503+28387(Top 29%)1651(Top 13%)1651(Top 29%)
21M21.00 mi1.00 mi8648+1521468+351468+357301(Top 25%)1330(Top 11%)1330(Top 23%)
35K21.75 mi0.75 mi8539+1091444+241444+246937(Top 24%)1156(Top 9%)1156(Top 20%)
23M23.00 mi1.25 mi8395+1441408+361408+366657(Top 23%)1109(Top 9%)1109(Top 19%)
24M24.00 mi1.00 mi8284+1111391+171391+176975(Top 24%)1278(Top 10%)1278(Top 22%)
40K24.85 mi0.85 mi8236+481395-41395-47390(Top 25%)1528(Top 12%)1528(Top 27%)
25.2M25.20 mi0.35 mi8158+781376+191376+195021(Top 17%)789(Top 6%)789(Top 14%)
FINISH26.22 mi1.02 mi7962+1961324+521324+524855(Top 17%)755(Top 6%)755(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21
+97ft-345ft

Overall

9265

Females

1592

F18-39

1592

5K→10K

3.1 - 6.2 mi

Top 33%
×5
+79ft-138ft

Overall

9582

Females

1699

F18-39

1699

10K→15K

6.2 - 9.3 mi

Top 32%
×3
+67ft-78ft

Overall

9265

Females

1592

F18-39

1592

15K→20K

9.3 - 12.4 mi

Top 30%
×5
+106ft-86ft

Overall

8588

Females

1383

F18-39

1383

20K→HALF

12.4 - 13.1 mi

Top 31%
×2
+19ft-37ft

Overall

9038

Females

1521

F18-39

1521

HALF→25K

13.1 - 15.5 mi

Top 29%
×4
+66ft-88ft

Overall

8278

Females

1346

F18-39

1346

25K→30K

15.5 - 18.6 mi

Top 28%
×9
+181ft-148ft

Overall

8241

Females

1478

F18-39

1478

30K→20M

18.6 - 20.0 mi

Top 29%
×5
+64ft-50ft

Overall

8387

Females

1651

F18-39

1651

20M→21M

20.0 - 21.0 mi

Top 25%
×8
+106ft-24ft

Overall

7301

Females

1330

F18-39

1330

21M→35K

21.0 - 21.8 mi

Top 24%
×7
+17ft-86ft

Overall

6937

Females

1156

F18-39

1156

35K→23M

21.8 - 23.0 mi

Top 23%
×5
+23ft-63ft

Overall

6657

Females

1109

F18-39

1109

23M→24M

23.0 - 24.0 mi

Top 24%
×6
+12ft-82ft

Overall

6975

Females

1278

F18-39

1278

24M→40K

24.0 - 24.9 mi

Top 25%
×1
+6ft-20ft

Overall

7390

Females

1528

F18-39

1528

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1
+13ft-16ft

Overall

5021

Females

789

F18-39

789

25.2M→FINISH

25.2 - 26.2 mi

Top 17%
×2
+22ft-21ft

Overall

4855

Females

755

F18-39

755

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2666*
Passed By
459
Net Change
+2207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10169
5K → 10K425*126+299#10169#9870
10K → 15K332*70+262#9870#9608
15K → 20K314*26+288#9608#9320
20K → HALF4314+29#9320#9291
HALF → 25K216*18+198#9291#9093
25K → 30K261*57+204#9093#8889
30K → 20M13041+89#8889#8800
20M → 21M17220+152#8800#8648
21M → 35K1156+109#8648#8539
35K → 23M15612+144#8539#8395
23M → 24M13827+111#8395#8284
24M → 40K8335+48#8284#8236
40K → 25.2M780+78#8236#8158
25.2M → FINISH203*7+196#8158#7962
TOTALS2666*459+2207

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

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing