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BOSTON MARATHON 2023

Sydney Nolan

Bib: 30431•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:45/mi
30:17
↑ 97↓ 3451.5%
10K· 6.21 mi
9:20/mi
59:16
↑ 79↓ 1380.4%
15K· 9.32 mi
9:12/mi
1:27:50
↑ 67↓ 78
20K· 12.43 mi
9:25/mi
1:57:04
↑ 106↓ 860.1%
Half· 13.11 mi
9:16/mi
2:03:23
↑ 19↓ 370.5%
25K· 15.53 mi
10:23/mi
2:28:34
↑ 66↓ 880.2%
30K· 18.64 mi
9:38/mi
2:58:31
↑ 181↓ 1480.2%
20M
9:32/mi
3:11:28
↑ 64↓ 500.2%
21M
10:08/mi
3:21:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:35/mi
3:28:46
↑ 17↓ 861.7%
23M
9:42/mi
3:40:55
↑ 23↓ 630.6%
24M
9:20/mi
3:50:15
↓ 821.3%
40K· 24.85 mi
9:33/mi
3:58:25
↓ 200.3%
25.2M
9:54/mi
4:01:50
↑ 13↓ 160.2%
Finish· 26.22 mi
8:39/mi
4:10:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:23
Pace9:25 /mi
2nd Half
Distance13.11 mi
Time2:07:16
Pace9:42 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3830:179:4530:17
9:45
-
10K
6.21 mi12:18:3759:169:3228:59
9:20
-0:25
15K
9.32 mi12:47:111:27:509:2528:34
9:12
-0:08
20K
12.43 mi13:16:251:57:049:2529:14
9:25
+0:13
Half
13.11 mi13:22:442:03:239:256:19
9:16
-0:09
25K
15.53 mi13:47:552:28:349:3425:11
10:23
+1:07
30K
18.64 mi14:17:522:58:319:3529:57
9:38
-0:45
20M
20.00 mi14:30:493:11:289:3412:57
9:32
-0:06
21M
21.00 mi14:40:573:21:369:3610:08
10:08
+0:36
35K
21.75 mi14:48:073:28:469:367:10
9:35
-0:33
23M
23.00 mi15:00:163:40:559:3612:09
9:42
+0:07
24M
24.00 mi15:09:363:50:159:369:20
9:20
-0:22
40K
24.85 mi15:17:463:58:259:368:10
9:33
+0:13
25.2M
25.20 mi15:21:114:01:509:363:25
9:54
+0:21
Finish
26.22 mi15:30:004:10:399:348:49
8:39
-1:15

Checkpoints & Pacing

📈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

8:39 /mi

Average Pace

9:34 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:01

33% of race

Time at Steady Pace

1:39:37

40% of race

Time at Slower Pace

1:09:01

28% of race

Average Pace: 9:34 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:49:3830:179:4530:17
9:45
#22790
10K
6.21 mi12:18:3759:169:3228:59
9:20
#22429
15K
9.32 mi12:47:111:27:509:2528:34
9:12
#22058
20K
12.43 mi13:16:251:57:049:2529:14
9:25
#21865
Half
13.11 mi13:22:442:03:239:256:19
9:16
#21833
25K
15.53 mi13:47:552:28:349:3425:11
10:23
#22065
30K
18.64 mi14:17:522:58:319:3529:57
9:38
#21684
20M
20.00 mi14:30:493:11:289:3412:57
9:32
#21516
21M
21.00 mi14:40:573:21:369:3610:08
10:08
#21347
35K
21.75 mi14:48:073:28:469:367:10
9:35
#21295
23M
23.00 mi15:00:163:40:559:3612:09
9:42
#21148
24M
24.00 mi15:09:363:50:159:369:20
9:20
#21028
40K
24.85 mi15:17:463:58:259:368:10
9:33
#20921
25.2M
25.20 mi15:21:114:01:509:363:25
9:54
#20861
Finish
26.22 mi15:30:004:10:399:348:49
8:39
#20727
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227909272927221292(Top 80%)8398(Top 74%)8398(Top 172%)
10K6.21 mi3.10 mi22429+3619065+2079065+20722020(Top 83%)8828(Top 77%)8828(Top 181%)
15K9.32 mi3.11 mi22058+3718868+1978868+19721292(Top 80%)8398(Top 74%)8398(Top 172%)
20K12.43 mi3.11 mi21865+1938750+1188750+11821271(Top 80%)8386(Top 73%)8386(Top 172%)
Half13.11 mi0.68 mi21833+328732+188732+1821373(Top 80%)8445(Top 74%)8445(Top 173%)
25K15.53 mi2.42 mi22065-2328859-1278859-12722990(Top 86%)9383(Top 82%)9383(Top 192%)
30K18.64 mi3.11 mi21684+3818659+2008659+20019946(Top 75%)7737(Top 68%)7737(Top 158%)
20M20.00 mi1.36 mi21516+1688573+868573+8618995(Top 71%)7301(Top 64%)7301(Top 149%)
21M21.00 mi1.00 mi21347+1698500+738500+7318516(Top 70%)7067(Top 62%)7067(Top 145%)
35K21.75 mi0.75 mi21295+528478+228478+2220115(Top 76%)7998(Top 70%)7998(Top 164%)
23M23.00 mi1.25 mi21148+1478415+638415+6319113(Top 72%)7475(Top 65%)7475(Top 153%)
24M24.00 mi1.00 mi21028+1208357+588357+5818625(Top 70%)7242(Top 63%)7242(Top 148%)
40K24.85 mi0.85 mi20921+1078312+458312+4518544(Top 70%)7248(Top 63%)7248(Top 148%)
25.2M25.20 mi0.35 mi20861+608282+308282+3017112(Top 64%)6504(Top 57%)6504(Top 133%)
Finish26.22 mi1.02 mi20727+1348214+688214+6816292(Top 61%)5999(Top 53%)5999(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21292

Females

8398

F18-39

8398

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22020

Females

8828

F18-39

8828

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21292

Females

8398

F18-39

8398

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21271

Females

8386

F18-39

8386

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21373

Females

8445

F18-39

8445

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

22990

Females

9383

F18-39

9383

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19946

Females

7737

F18-39

7737

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18995

Females

7301

F18-39

7301

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18516

Females

7067

F18-39

7067

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20115

Females

7998

F18-39

7998

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19113

Females

7475

F18-39

7475

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18625

Females

7242

F18-39

7242

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18544

Females

7248

F18-39

7248

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17112

Females

6504

F18-39

6504

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16292

Females

5999

F18-39

5999

Passing Analysis

Category:
Athletes Passed
2593
Passed By
530
Net Change
+2063
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22790
5K → 10K466105+361#22790#22429
10K → 15K40534+371#22429#22058
15K → 20K25259+193#22058#21865
20K → Half4210+32#21865#21833
Half → 25K43275-232#21833#22065
25K → 30K39514+381#22065#21684
30K → 20M1702+168#21684#21516
20M → 21M1789+169#21516#21347
21M → 35K564+52#21347#21295
35K → 23M1547+147#21295#21148
23M → 24M1233+120#21148#21028
24M → 40K1092+107#21028#20921
40K → 25.2M622+60#20921#20861
25.2M → Finish1384+134#20861#20727
TOTALS2593530+2063
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing