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BOSTON MARATHON 2025

Caroline Chupin

Bib: 8770•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #6066
Start → 5K
21:01 | 6:46/mi
10K· 6.21 mi
41:39
Rank: #5406 (+660)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:02:13
Rank: #5019 (+387)
10K → 15K
20:34 | 6:37/mi
20K· 12.43 mi
1:22:51
Rank: #4712 (+307)
15K → 20K
20:38 | 6:38/mi
Half· 13.11 mi
1:27:21
Rank: #4672 (+40)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:26
Rank: #4447 (+225)
Half → 25K
16:05 | 6:38/mi
30K· 18.64 mi
2:04:36
Rank: #4185 (+262)
25K → 30K
21:10 | 6:49/mi
20M
2:14:02
Rank: #4124 (+61)
30K → 20M
9:26 | 6:57/mi
21M
2:21:21
Rank: #4086 (+38)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:26:23
Rank: #4051 (+35)
21M → 35K
5:02 | 6:44/mi
23M
2:35:07
Rank: #3982 (+69)
35K → 23M
8:44 | 6:59/mi
24M
2:41:57
Rank: #3948 (+34)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:47:53
Rank: #3894 (+54)
24M → 40K
5:56 | 6:56/mi
25.2M
2:50:29
Rank: #3877 (+17)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:57:32
Rank: #3905 (-28)
25.2M → Finish
7:03 | 6:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:21
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:30:11
Pace6:53 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0821:016:4621:01
6:46
-
10K
6.21 mi11:06:4641:396:4220:38
6:38
-0:08
15K
9.32 mi11:27:201:02:136:4120:34
6:37
-0:01
20K
12.43 mi11:47:581:22:516:4020:38
6:38
+0:01
Half
13.11 mi11:52:281:27:216:404:30
6:36
-0:02
25K
15.53 mi12:08:331:43:266:4016:05
6:38
+0:02
30K
18.64 mi12:29:432:04:366:4121:10
6:49
+0:11
20M
20.00 mi12:39:092:14:026:429:26
6:57
+0:08
21M
21.00 mi12:46:282:21:216:447:19
7:19
+0:22
35K
21.75 mi12:51:302:26:236:445:02
6:44
-0:35
23M
23.00 mi13:00:142:35:076:458:44
6:59
+0:15
24M
24.00 mi13:07:042:41:576:456:50
6:50
-0:09
40K
24.85 mi13:13:002:47:536:455:56
6:56
+0:06
25.2M
25.20 mi13:15:362:50:296:462:36
7:32
+0:36
Finish
26.22 mi13:22:392:57:326:477:03
6:55
-0:37

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

6:36 /mi

Average Pace

6:47 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:37

94% of race

Time at Steady Pace

9:55

6% of race

Time at Slower Pace

0:00

0% 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 mi10:46:0821:016:4621:01
6:46
#6066
10K
6.21 mi11:06:4641:396:4220:38
6:38
#5406
15K
9.32 mi11:27:201:02:136:4120:34
6:37
#5019
20K
12.43 mi11:47:581:22:516:4020:38
6:38
#4712
Half
13.11 mi11:52:281:27:216:404:30
6:36
#4672
25K
15.53 mi12:08:331:43:266:4016:05
6:38
#4447
30K
18.64 mi12:29:432:04:366:4121:10
6:49
#4185
20M
20.00 mi12:39:092:14:026:429:26
6:57
#4124
21M
21.00 mi12:46:282:21:216:447:19
7:19
#4086
35K
21.75 mi12:51:302:26:236:445:02
6:44
#4051
23M
23.00 mi13:00:142:35:076:458:44
6:59
#3982
24M
24.00 mi13:07:042:41:576:456:50
6:50
#3948
40K
24.85 mi13:13:002:47:536:455:56
6:56
#3894
25.2M
25.20 mi13:15:362:50:296:462:36
7:32
#3877
Finish
26.22 mi13:22:392:57:326:477:03
6:55
#3905
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi60664844844416(Top 16%)265(Top 2%)265(Top 5%)
10K6.21 mi3.10 mi5406+660387+97387+974819(Top 17%)302(Top 2%)302(Top 6%)
15K9.32 mi3.11 mi5019+387331+56331+564416(Top 16%)265(Top 2%)265(Top 5%)
20K12.43 mi3.11 mi4712+307303+28303+283970(Top 14%)226(Top 2%)226(Top 4%)
Half13.11 mi0.68 mi4672+40298+5298+54457(Top 16%)276(Top 2%)276(Top 5%)
25K15.53 mi2.42 mi4447+225274+24274+243701(Top 13%)216(Top 2%)216(Top 4%)
30K18.64 mi3.11 mi4185+262255+19255+193539(Top 12%)241(Top 2%)241(Top 4%)
20M20.00 mi1.36 mi4124+61254+1254+13794(Top 13%)290(Top 2%)290(Top 5%)
21M21.00 mi1.00 mi4086+38255-1255-13722(Top 13%)313(Top 3%)313(Top 6%)
35K21.75 mi0.75 mi4051+35257-2257-23736(Top 13%)350(Top 3%)350(Top 6%)
23M23.00 mi1.25 mi3982+69263-6263-63641(Top 13%)336(Top 3%)336(Top 6%)
24M24.00 mi1.00 mi3948+34268-5268-53734(Top 13%)401(Top 3%)401(Top 7%)
40K24.85 mi0.85 mi3894+542682683602(Top 13%)397(Top 3%)397(Top 7%)
25.2M25.20 mi0.35 mi3877+17270-2270-23653(Top 13%)455(Top 4%)455(Top 8%)
Finish26.22 mi1.02 mi3905-28280-10280-105231(Top 18%)935(Top 8%)935(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4416

Females

265

F18-39

265

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4819

Females

302

F18-39

302

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4416

Females

265

F18-39

265

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3970

Females

226

F18-39

226

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4457

Females

276

F18-39

276

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3701

Females

216

F18-39

216

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3539

Females

241

F18-39

241

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3794

Females

290

F18-39

290

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3722

Females

313

F18-39

313

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3736

Females

350

F18-39

350

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3641

Females

336

F18-39

336

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3734

Females

401

F18-39

401

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3602

Females

397

F18-39

397

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3653

Females

455

F18-39

455

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5231

Females

935

F18-39

935

Passing Analysis

Category:
Athletes Passed
2512
Passed By
351
Net Change
+2161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6066
5K → 10K67919+660#6066#5406
10K → 15K40720+387#5406#5019
15K → 20K32316+307#5019#4712
20K → Half477+40#4712#4672
Half → 25K23510+225#4672#4447
25K → 30K28725+262#4447#4185
30K → 20M9837+61#4185#4124
20M → 21M7436+38#4124#4086
21M → 35K5520+35#4086#4051
35K → 23M10435+69#4051#3982
23M → 24M6329+34#3982#3948
24M → 40K6814+54#3948#3894
40K → 25.2M247+17#3894#3877
25.2M → Finish4876-28#3877#3905
TOTALS2512351+2161
📊

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