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BOSTON MARATHON 2025

Caitlin Young

Bib: 28491•F

MA

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
26:18
Rank: #19695
Start → 5K
8:28/mi
26:18 split
10K· 6.21 mi
52:52
Rank: #19896 (-201)
5K → 10K
8:33/mi
26:34 split
15K· 9.32 mi
1:20:05
Rank: #20190 (-294)
10K → 15K
8:46/mi
27:13 split
20K· 12.43 mi
1:47:21
Rank: #20081 (+109)
15K → 20K
8:47/mi
27:16 split
Half· 13.11 mi
1:53:17
Rank: #20071 (+10)
20K → Half
8:42/mi
5:56 split
25K· 15.53 mi
2:14:37
Rank: #19872 (+199)
Half → 25K
8:48/mi
21:20 split
30K· 18.64 mi
2:43:19
Rank: #19658 (+214)
25K → 30K
9:14/mi
28:42 split
20M
2:56:12
Rank: #19616 (+42)
30K → 20M
9:29/mi
12:53 split
21M
3:06:23
Rank: #19579 (+37)
20M → 21M
10:11/mi
10:11 split
35K· 21.75 mi
3:13:29
Rank: #19628 (-49)
21M → 35K
9:29/mi
7:06 split
23M
3:25:55
Rank: #19667 (-39)
35K → 23M
9:56/mi
12:26 split
24M
3:35:38
Rank: #19724 (-57)
23M → 24M
9:43/mi
9:43 split
40K· 24.85 mi
3:44:12
Rank: #19780 (-56)
24M → 40K
10:01/mi
8:34 split
25.2M
3:47:54
Rank: #19788 (-8)
40K → 25.2M
10:44/mi
3:42 split
Finish· 26.22 mi
3:57:42
Rank: #19882 (-94)
25.2M → Finish
9:37/mi
9:48 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:17
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:04:25
Pace9:29 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4626:188:2826:18
8:28
-
10K
6.21 mi12:17:2052:528:3026:34
8:33
+0:05
15K
9.32 mi12:44:331:20:058:3627:13
8:46
+0:13
20K
12.43 mi13:11:491:47:218:3827:16
8:47
+0:01
Half
13.11 mi13:17:451:53:178:385:56
8:42
-0:05
25K
15.53 mi13:39:052:14:378:4021:20
8:48
+0:06
30K
18.64 mi14:07:472:43:198:4628:42
9:14
+0:26
20M
20.00 mi14:20:402:56:128:4912:53
9:29
+0:15
21M
21.00 mi14:30:513:06:238:5310:11
10:11
+0:42
35K
21.75 mi14:37:573:13:298:547:06
9:29
-0:42
23M
23.00 mi14:50:233:25:558:5712:26
9:56
+0:27
24M
24.00 mi15:00:063:35:388:599:43
9:43
-0:13
40K
24.85 mi15:08:403:44:129:018:34
10:01
+0:18
25.2M
25.20 mi15:12:223:47:549:033:42
10:44
+0:43
Finish
26.22 mi15:22:103:57:429:049:48
9:37
-1:07

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

8:28 /mi

Average Pace

9:04 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:37

57% of race

Time at Steady Pace

1:08:12

29% of race

Time at Slower Pace

34:53

15% of race

Average Pace: 9:04 /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 mi11:50:4626:188:2826:18
8:28
#19695
10K
6.21 mi12:17:2052:528:3026:34
8:33
#19896
15K
9.32 mi12:44:331:20:058:3627:13
8:46
#20190
20K
12.43 mi13:11:491:47:218:3827:16
8:47
#20081
Half
13.11 mi13:17:451:53:178:385:56
8:42
#20071
25K
15.53 mi13:39:052:14:378:4021:20
8:48
#19872
30K
18.64 mi14:07:472:43:198:4628:42
9:14
#19658
20M
20.00 mi14:20:402:56:128:4912:53
9:29
#19616
21M
21.00 mi14:30:513:06:238:5310:11
10:11
#19579
35K
21.75 mi14:37:573:13:298:547:06
9:29
#19628
23M
23.00 mi14:50:233:25:558:5712:26
9:56
#19667
24M
24.00 mi15:00:063:35:388:599:43
9:43
#19724
40K
24.85 mi15:08:403:44:129:018:34
10:01
#19780
25.2M
25.20 mi15:12:223:47:549:033:42
10:44
#19788
Finish
26.22 mi15:22:103:57:429:049:48
9:37
#19882
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi196957325732520823(Top 73%)7900(Top 65%)7900(Top 144%)
10K6.21 mi3.10 mi19896-2017410-857410-8520110(Top 71%)7527(Top 62%)7527(Top 138%)
15K9.32 mi3.11 mi20190-2947580-1707580-17020823(Top 73%)7900(Top 65%)7900(Top 144%)
20K12.43 mi3.11 mi20081+1097516+647516+6419832(Top 70%)7394(Top 60%)7394(Top 135%)
Half13.11 mi0.68 mi20071+107515+17515+120390(Top 72%)7691(Top 63%)7691(Top 141%)
25K15.53 mi2.42 mi19872+1997407+1087407+10818938(Top 67%)6949(Top 57%)6949(Top 127%)
30K18.64 mi3.11 mi19658+2147329+787329+7818842(Top 66%)7037(Top 58%)7037(Top 129%)
20M20.00 mi1.36 mi19616+427329732919099(Top 67%)7315(Top 60%)7315(Top 134%)
21M21.00 mi1.00 mi19579+377338-97338-918982(Top 67%)7324(Top 60%)7324(Top 134%)
35K21.75 mi0.75 mi19628-497376-387376-3820310(Top 72%)8134(Top 67%)8134(Top 149%)
23M23.00 mi1.25 mi19667-397435-597435-5920273(Top 71%)8183(Top 67%)8183(Top 150%)
24M24.00 mi1.00 mi19724-577492-577492-5720449(Top 72%)8323(Top 68%)8323(Top 152%)
40K24.85 mi0.85 mi19780-567543-517543-5120522(Top 72%)8418(Top 69%)8418(Top 154%)
25.2M25.20 mi0.35 mi19788-87550-77550-719846(Top 70%)8074(Top 66%)8074(Top 148%)
Finish26.22 mi1.02 mi19882-947618-687618-6821617(Top 76%)8964(Top 73%)8964(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20823

Females

7900

F18-39

7900

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20110

Females

7527

F18-39

7527

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20823

Females

7900

F18-39

7900

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19832

Females

7394

F18-39

7394

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20390

Females

7691

F18-39

7691

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

18938

Females

6949

F18-39

6949

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

18842

Females

7037

F18-39

7037

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

19099

Females

7315

F18-39

7315

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

18982

Females

7324

F18-39

7324

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20310

Females

8134

F18-39

8134

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20273

Females

8183

F18-39

8183

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20449

Females

8323

F18-39

8323

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20522

Females

8418

F18-39

8418

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19846

Females

8074

F18-39

8074

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21617

Females

8964

F18-39

8964

Passing Analysis

Category:
Athletes Passed
1632
Passed By
1819
Net Change
-187
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19695
5K → 10K179380-201#19695#19896
10K → 15K104398-294#19896#20190
15K → 20K241132+109#20190#20081
20K → Half3424+10#20081#20071
Half → 25K24950+199#20071#19872
25K → 30K333119+214#19872#19658
30K → 20M12179+42#19658#19616
20M → 21M11780+37#19616#19579
21M → 35K3079-49#19579#19628
35K → 23M77116-39#19628#19667
23M → 24M52109-57#19667#19724
24M → 40K45101-56#19724#19780
40K → 25.2M1927-8#19780#19788
25.2M → Finish31125-94#19788#19882
TOTALS16321819-187
📊

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