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BOSTON MARATHON 2025

Caroline Reynolds

Bib: 28330•F

CA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:26
Rank: #18028
Start → 5K
8:11/mi
25:26 split
10K· 6.21 mi
50:31
Rank: #17495 (+533)
5K → 10K
8:04/mi
25:05 split
15K· 9.32 mi
1:15:27
Rank: #17047 (+448)
10K → 15K
8:02/mi
24:56 split
20K· 12.43 mi
1:41:28
Rank: #17122 (-75)
15K → 20K
8:22/mi
26:01 split
Half· 13.11 mi
1:47:13
Rank: #17193 (-71)
20K → Half
8:26/mi
5:45 split
25K· 15.53 mi
2:08:21
Rank: #17368 (-175)
Half → 25K
8:43/mi
21:08 split
30K· 18.64 mi
2:36:50
Rank: #17561 (-193)
25K → 30K
9:10/mi
28:29 split
20M
2:49:56
Rank: #17761 (-200)
30K → 20M
9:38/mi
13:06 split
21M
3:00:18
Rank: #17932 (-171)
20M → 21M
10:22/mi
10:22 split
35K· 21.75 mi
3:07:01
Rank: #17927 (+5)
21M → 35K
8:59/mi
6:43 split
23M
3:19:38
Rank: #18167 (-240)
35K → 23M
10:05/mi
12:37 split
24M
3:29:25
Rank: #18298 (-131)
23M → 24M
9:47/mi
9:47 split
40K· 24.85 mi
3:38:22
Rank: #18520 (-222)
24M → 40K
10:28/mi
8:57 split
25.2M
3:42:12
Rank: #18595 (-75)
40K → 25.2M
11:07/mi
3:50 split
Finish· 26.22 mi
3:52:05
Rank: #18758 (-163)
25.2M → Finish
9:42/mi
9:53 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:13
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time2:04:52
Pace9:32 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0425:268:1125:26
8:11
-
10K
6.21 mi12:09:0950:318:0825:05
8:04
-0:07
15K
9.32 mi12:34:051:15:278:0624:56
8:02
-0:02
20K
12.43 mi13:00:061:41:288:1026:01
8:22
+0:20
Half
13.11 mi13:05:511:47:138:115:45
8:26
+0:04
25K
15.53 mi13:26:592:08:218:1621:08
8:43
+0:17
30K
18.64 mi13:55:282:36:508:2528:29
9:10
+0:27
20M
20.00 mi14:08:342:49:568:3013:06
9:38
+0:28
21M
21.00 mi14:18:563:00:188:3510:22
10:22
+0:44
35K
21.75 mi14:25:393:07:018:366:43
8:59
-1:23
23M
23.00 mi14:38:163:19:388:4112:37
10:05
+1:06
24M
24.00 mi14:48:033:29:258:449:47
9:47
-0:18
40K
24.85 mi14:57:003:38:228:478:57
10:28
+0:41
25.2M
25.20 mi15:00:503:42:128:493:50
11:07
+0:39
Finish
26.22 mi15:10:433:52:058:519:53
9:42
-1:25

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

8:02 /mi

Average Pace

8:51 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:13

46% of race

Time at Steady Pace

1:09:26

30% of race

Time at Slower Pace

55:26

24% of race

Average Pace: 8:51 /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 mi11:44:0425:268:1125:26
8:11
#18028
10K
6.21 mi12:09:0950:318:0825:05
8:04
#17495
15K
9.32 mi12:34:051:15:278:0624:56
8:02
#17047
20K
12.43 mi13:00:061:41:288:1026:01
8:22
#17122
Half
13.11 mi13:05:511:47:138:115:45
8:26
#17193
25K
15.53 mi13:26:592:08:218:1621:08
8:43
#17368
30K
18.64 mi13:55:282:36:508:2528:29
9:10
#17561
20M
20.00 mi14:08:342:49:568:3013:06
9:38
#17761
21M
21.00 mi14:18:563:00:188:3510:22
10:22
#17932
35K
21.75 mi14:25:393:07:018:366:43
8:59
#17927
23M
23.00 mi14:38:163:19:388:4112:37
10:05
#18167
24M
24.00 mi14:48:033:29:258:449:47
9:47
#18298
40K
24.85 mi14:57:003:38:228:478:57
10:28
#18520
25.2M
25.20 mi15:00:503:42:128:493:50
11:07
#18595
Finish
26.22 mi15:10:433:52:058:519:53
9:42
#18758
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi180286361636116258(Top 57%)5292(Top 43%)5292(Top 97%)
10K6.21 mi3.10 mi17495+5336032+3296032+32917035(Top 60%)5727(Top 47%)5727(Top 105%)
15K9.32 mi3.11 mi17047+4485746+2865746+28616258(Top 57%)5292(Top 43%)5292(Top 97%)
20K12.43 mi3.11 mi17122-755815-695815-6917408(Top 61%)6012(Top 49%)6012(Top 110%)
Half13.11 mi0.68 mi17193-715858-435858-4318798(Top 66%)6792(Top 56%)6792(Top 124%)
25K15.53 mi2.42 mi17368-1755978-1205978-12018509(Top 65%)6710(Top 55%)6710(Top 123%)
30K18.64 mi3.11 mi17561-1936162-1846162-18418498(Top 65%)6836(Top 56%)6836(Top 125%)
20M20.00 mi1.36 mi17761-2006298-1366298-13619746(Top 70%)7654(Top 63%)7654(Top 140%)
21M21.00 mi1.00 mi17932-1716393-956393-9519605(Top 69%)7682(Top 63%)7682(Top 140%)
35K21.75 mi0.75 mi17927+56399-66399-618149(Top 64%)6985(Top 57%)6985(Top 128%)
23M23.00 mi1.25 mi18167-2406582-1836582-18320735(Top 73%)8419(Top 69%)8419(Top 154%)
24M24.00 mi1.00 mi18298-1316683-1016683-10120679(Top 73%)8432(Top 69%)8432(Top 154%)
40K24.85 mi0.85 mi18520-2226833-1506833-15021836(Top 77%)9109(Top 74%)9109(Top 167%)
25.2M25.20 mi0.35 mi18595-756887-546887-5421006(Top 74%)8650(Top 71%)8650(Top 158%)
Finish26.22 mi1.02 mi18758-1636995-1086995-10821925(Top 77%)9116(Top 75%)9116(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16258

Females

5292

F18-39

5292

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

17035

Females

5727

F18-39

5727

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16258

Females

5292

F18-39

5292

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17408

Females

6012

F18-39

6012

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

18798

Females

6792

F18-39

6792

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18509

Females

6710

F18-39

6710

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18498

Females

6836

F18-39

6836

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19746

Females

7654

F18-39

7654

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19605

Females

7682

F18-39

7682

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18149

Females

6985

F18-39

6985

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20735

Females

8419

F18-39

8419

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

20679

Females

8432

F18-39

8432

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21836

Females

9109

F18-39

9109

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

21006

Females

8650

F18-39

8650

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

21925

Females

9116

F18-39

9116

Passing Analysis

Category:
Athletes Passed
1926
Passed By
2656
Net Change
-730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18028
5K → 10K62491+533#18028#17495
10K → 15K49446+448#17495#17047
15K → 20K168243-75#17047#17122
20K → Half1586-71#17122#17193
Half → 25K122297-175#17193#17368
25K → 30K164357-193#17368#17561
30K → 20M71271-200#17561#17761
20M → 21M52223-171#17761#17932
21M → 35K6358+5#17932#17927
35K → 23M47287-240#17927#18167
23M → 24M51182-131#18167#18298
24M → 40K24246-222#18298#18520
40K → 25.2M1287-75#18520#18595
25.2M → Finish19182-163#18595#18758
TOTALS19262656-730
📊

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