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BOSTON MARATHON 2025

Claire Coughlin

Bib: 10231•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #4517
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
41:16
Rank: #4846 (-329)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:02:06
Rank: #4902 (-56)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:22:46
Rank: #4641 (+261)
15K → 20K
20:40 | 6:39/mi
Half· 13.11 mi
1:27:09
Rank: #4551 (+90)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:43:04
Rank: #4259 (+292)
Half → 25K
15:55 | 6:34/mi
30K· 18.64 mi
2:03:50
Rank: #3913 (+346)
25K → 30K
20:46 | 6:41/mi
20M
2:13:06
Rank: #3809 (+104)
30K → 20M
9:16 | 6:49/mi
21M
2:20:20
Rank: #3741 (+68)
20M → 21M
7:14 | 7:14/mi
35K· 21.75 mi
2:25:16
Rank: #3699 (+42)
21M → 35K
4:56 | 6:36/mi
23M
2:34:04
Rank: #3673 (+26)
35K → 23M
8:48 | 7:02/mi
24M
2:40:57
Rank: #3652 (+21)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:47:13
Rank: #3719 (-67)
24M → 40K
6:16 | 7:20/mi
25.2M
2:50:08
Rank: #3787 (-68)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
2:57:17
Rank: #3826 (-39)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:09
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:30:08
Pace6:53 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1620:286:3520:28
6:35
-
10K
6.21 mi11:07:0441:166:3820:48
6:42
+0:07
15K
9.32 mi11:27:541:02:066:4020:50
6:42
0:00
20K
12.43 mi11:48:341:22:466:4020:40
6:39
-0:03
Half
13.11 mi11:52:571:27:096:394:23
6:25
-0:14
25K
15.53 mi12:08:521:43:046:3815:55
6:34
+0:09
30K
18.64 mi12:29:382:03:506:3920:46
6:41
+0:07
20M
20.00 mi12:38:542:13:066:399:16
6:49
+0:08
21M
21.00 mi12:46:082:20:206:417:14
7:14
+0:25
35K
21.75 mi12:51:042:25:166:414:56
6:36
-0:38
23M
23.00 mi12:59:522:34:046:428:48
7:02
+0:26
24M
24.00 mi13:06:452:40:576:426:53
6:53
-0:09
40K
24.85 mi13:13:012:47:136:446:16
7:20
+0:27
25.2M
25.20 mi13:15:562:50:086:452:55
8:27
+1:07
Finish
26.22 mi13:23:052:57:176:467:09
7:01
-1:26

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

6:25 /mi

Average Pace

6:46 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:23

2% of race

Time at Steady Pace

2:20:32

79% of race

Time at Slower Pace

32:22

18% of race

Average Pace: 6:46 /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 mi10:46:1620:286:3520:28
6:35
#4517
10K
6.21 mi11:07:0441:166:3820:48
6:42
#4846
15K
9.32 mi11:27:541:02:066:4020:50
6:42
#4902
20K
12.43 mi11:48:341:22:466:4020:40
6:39
#4641
Half
13.11 mi11:52:571:27:096:394:23
6:25
#4551
25K
15.53 mi12:08:521:43:046:3815:55
6:34
#4259
30K
18.64 mi12:29:382:03:506:3920:46
6:41
#3913
20M
20.00 mi12:38:542:13:066:399:16
6:49
#3809
21M
21.00 mi12:46:082:20:206:417:14
7:14
#3741
35K
21.75 mi12:51:042:25:166:414:56
6:36
#3699
23M
23.00 mi12:59:522:34:046:428:48
7:02
#3673
24M
24.00 mi13:06:452:40:576:426:53
6:53
#3652
40K
24.85 mi13:13:012:47:136:446:16
7:20
#3719
25.2M
25.20 mi13:15:562:50:086:452:55
8:27
#3787
Finish
26.22 mi13:23:052:57:176:467:09
7:01
#3826
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi45172652655146(Top 18%)368(Top 3%)368(Top 7%)
10K6.21 mi3.10 mi4846-329308-43308-435320(Top 19%)382(Top 3%)382(Top 7%)
15K9.32 mi3.11 mi4902-56316-8316-85146(Top 18%)368(Top 3%)368(Top 7%)
20K12.43 mi3.11 mi4641+261295+21295+214053(Top 14%)238(Top 2%)238(Top 4%)
Half13.11 mi0.68 mi4551+90283+12283+123299(Top 12%)162(Top 1%)162(Top 3%)
25K15.53 mi2.42 mi4259+292255+28255+283254(Top 11%)166(Top 1%)166(Top 3%)
30K18.64 mi3.11 mi3913+346223+32223+322826(Top 10%)147(Top 1%)147(Top 3%)
20M20.00 mi1.36 mi3809+104213+10213+103088(Top 11%)212(Top 2%)212(Top 4%)
21M21.00 mi1.00 mi3741+68215-2215-23321(Top 12%)259(Top 2%)259(Top 5%)
35K21.75 mi0.75 mi3699+42213+2213+22983(Top 11%)229(Top 2%)229(Top 4%)
23M23.00 mi1.25 mi3673+26219-6219-63953(Top 14%)403(Top 3%)403(Top 7%)
24M24.00 mi1.00 mi3652+21226-7226-74017(Top 14%)453(Top 4%)453(Top 8%)
40K24.85 mi0.85 mi3719-67240-14240-145821(Top 20%)1053(Top 9%)1053(Top 19%)
25.2M25.20 mi0.35 mi3787-68255-15255-158578(Top 30%)2291(Top 19%)2291(Top 42%)
Finish26.22 mi1.02 mi3826-39268-13268-135848(Top 21%)1184(Top 10%)1184(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5146

Females

368

F18-39

368

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5320

Females

382

F18-39

382

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5146

Females

368

F18-39

368

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4053

Females

238

F18-39

238

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3299

Females

162

F18-39

162

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3254

Females

166

F18-39

166

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2826

Females

147

F18-39

147

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3088

Females

212

F18-39

212

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3321

Females

259

F18-39

259

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2983

Females

229

F18-39

229

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3953

Females

403

F18-39

403

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

4017

Females

453

F18-39

453

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5821

Females

1053

F18-39

1053

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8578

Females

2291

F18-39

2291

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5848

Females

1184

F18-39

1184

Passing Analysis

Category:
Athletes Passed
1646
Passed By
955
Net Change
+691
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4517
5K → 10K66395-329#4517#4846
10K → 15K92148-56#4846#4902
15K → 20K28019+261#4902#4641
20K → Half900+90#4641#4551
Half → 25K2975+292#4551#4259
25K → 30K35812+346#4259#3913
30K → 20M1117+104#3913#3809
20M → 21M9123+68#3809#3741
21M → 35K5614+42#3741#3699
35K → 23M7145+26#3699#3673
23M → 24M5938+21#3673#3652
24M → 40K3299-67#3652#3719
40K → 25.2M472-68#3719#3787
25.2M → Finish3978-39#3787#3826
TOTALS1646955+691
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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