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BOSTON MARATHON 2025

Isabella Young

Bib: 29637•F

RI

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
32:13
Rank: #26454
Start → 5K
32:13 | 10:22/mi
10K· 6.21 mi
1:06:07
Rank: #26750 (-296)
5K → 10K
33:54 | 10:55/mi
15K· 9.32 mi
1:40:29
Rank: #26756 (-6)
10K → 15K
34:22 | 11:04/mi
20K· 12.43 mi
2:15:39
Rank: #26664 (+92)
15K → 20K
35:10 | 11:19/mi
Half· 13.11 mi
2:23:12
Rank: #26655 (+9)
20K → Half
7:33 | 11:04/mi
25K· 15.53 mi
2:52:12
Rank: #26619 (+36)
Half → 25K
29:00 | 11:58/mi
30K· 18.64 mi
3:33:42
Rank: #26732 (-113)
25K → 30K
41:30 | 13:21/mi
20M
3:52:23
Rank: #26798 (-66)
30K → 20M
18:41 | 13:45/mi
21M
4:07:11
Rank: #26833 (-35)
20M → 21M
14:48 | 14:48/mi
35K· 21.75 mi
4:16:16
Rank: #26809 (+24)
21M → 35K
9:05 | 12:08/mi
23M
4:32:45
Rank: #26817 (-8)
35K → 23M
16:29 | 13:10/mi
24M
4:47:33
Rank: #26907 (-90)
23M → 24M
14:48 | 14:48/mi
40K· 24.85 mi
5:01:01
Rank: #26981 (-74)
24M → 40K
13:28 | 15:45/mi
25.2M
5:06:46
Rank: #27015 (-34)
40K → 25.2M
5:45 | 16:40/mi
Finish· 26.22 mi
5:19:55
Rank: #27057 (-42)
25.2M → Finish
13:09 | 12:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:12
Pace10:55 /mi
2nd Half
Distance13.11 mi
Time2:56:43
Pace13:29 /mi
📊Positive Split: 23.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:3532:1310:2232:13
10:22
-
10K
6.21 mi12:32:291:06:0710:3833:54
10:55
+0:33
15K
9.32 mi13:06:511:40:2910:4734:22
11:04
+0:09
20K
12.43 mi13:42:012:15:3910:5535:10
11:19
+0:15
Half
13.11 mi13:49:342:23:1210:557:33
11:04
-0:15
25K
15.53 mi14:18:342:52:1211:0529:00
11:58
+0:54
30K
18.64 mi15:00:043:33:4211:2841:30
13:21
+1:23
20M
20.00 mi15:18:453:52:2311:3718:41
13:45
+0:24
21M
21.00 mi15:33:334:07:1111:4614:48
14:48
+1:03
35K
21.75 mi15:42:384:16:1611:479:05
12:08
-2:40
23M
23.00 mi15:59:074:32:4511:5216:29
13:10
+1:02
24M
24.00 mi16:13:554:47:3311:5914:48
14:48
+1:38
40K
24.85 mi16:27:235:01:0112:0713:28
15:45
+0:57
25.2M
25.20 mi16:33:085:06:4612:105:45
16:40
+0:55
Finish
26.22 mi16:46:175:19:5512:1313:09
12:54
-3:46

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

10:22 /mi

Average Pace

12:13 /mi

Slowest Pace

16:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:12

54% of race

Time at Steady Pace

1:38:54

31% of race

Time at Slower Pace

48:49

15% of race

Average Pace: 12:12 /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 mi11:58:3532:1310:2232:13
10:22
#26454
10K
6.21 mi12:32:291:06:0710:3833:54
10:55
#26750
15K
9.32 mi13:06:511:40:2910:4734:22
11:04
#26756
20K
12.43 mi13:42:012:15:3910:5535:10
11:19
#26664
Half
13.11 mi13:49:342:23:1210:557:33
11:04
#26655
25K
15.53 mi14:18:342:52:1211:0529:00
11:58
#26619
30K
18.64 mi15:00:043:33:4211:2841:30
13:21
#26732
20M
20.00 mi15:18:453:52:2311:3718:41
13:45
#26798
21M
21.00 mi15:33:334:07:1111:4614:48
14:48
#26833
35K
21.75 mi15:42:384:16:1611:479:05
12:08
#26809
23M
23.00 mi15:59:074:32:4511:5216:29
13:10
#26817
24M
24.00 mi16:13:554:47:3311:5914:48
14:48
#26907
40K
24.85 mi16:27:235:01:0112:0713:28
15:45
#26981
25.2M
25.20 mi16:33:085:06:4612:105:45
16:40
#27015
Finish
26.22 mi16:46:175:19:5512:1313:09
12:54
#27057
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26454110061100626745(Top 94%)11226(Top 92%)11226(Top 205%)
10K6.21 mi3.10 mi26750-29611197-19111197-19126937(Top 95%)11329(Top 93%)11329(Top 207%)
15K9.32 mi3.11 mi26756-611207-1011207-1026745(Top 94%)11226(Top 92%)11226(Top 205%)
20K12.43 mi3.11 mi26664+9211154+5311154+5326410(Top 93%)11041(Top 90%)11041(Top 202%)
Half13.11 mi0.68 mi26655+911153+111153+126578(Top 94%)11169(Top 91%)11169(Top 204%)
25K15.53 mi2.42 mi26619+3611154-111154-126394(Top 93%)11076(Top 91%)11076(Top 203%)
30K18.64 mi3.11 mi26732-11311248-9411248-9427011(Top 95%)11501(Top 94%)11501(Top 210%)
20M20.00 mi1.36 mi26798-6611287-3911287-3927105(Top 95%)11618(Top 95%)11618(Top 212%)
21M21.00 mi1.00 mi26833-3511319-3211319-3226982(Top 95%)11561(Top 95%)11561(Top 211%)
35K21.75 mi0.75 mi26809+2411311+811311+826049(Top 92%)11126(Top 91%)11126(Top 203%)
23M23.00 mi1.25 mi26817-811324-1311324-1326566(Top 94%)11383(Top 93%)11383(Top 208%)
24M24.00 mi1.00 mi26907-9011382-5811382-5827992(Top 99%)12096(Top 99%)12096(Top 221%)
40K24.85 mi0.85 mi26981-7411432-5011432-5028027(Top 99%)12108(Top 99%)12108(Top 221%)
25.2M25.20 mi0.35 mi27015-3411453-2111453-2127967(Top 98%)12094(Top 99%)12094(Top 221%)
Finish26.22 mi1.02 mi27057-4211482-2911482-2927558(Top 97%)11895(Top 97%)11895(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

26745

Females

11226

F18-39

11226

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

26937

Females

11329

F18-39

11329

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

26745

Females

11226

F18-39

11226

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

26410

Females

11041

F18-39

11041

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

26578

Females

11169

F18-39

11169

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

26394

Females

11076

F18-39

11076

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

27011

Females

11501

F18-39

11501

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

27105

Females

11618

F18-39

11618

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

26982

Females

11561

F18-39

11561

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

26049

Females

11126

F18-39

11126

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

26566

Females

11383

F18-39

11383

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

27992

Females

12096

F18-39

12096

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28027

Females

12108

F18-39

12108

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27967

Females

12094

F18-39

12094

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

27558

Females

11895

F18-39

11895

Passing Analysis

Category:
Athletes Passed
635
Passed By
1238
Net Change
-603
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26454
5K → 10K66362-296#26454#26750
10K → 15K118124-6#26750#26756
15K → 20K15563+92#26756#26664
20K → Half2617+9#26664#26655
Half → 25K9761+36#26655#26619
25K → 30K54167-113#26619#26732
30K → 20M1177-66#26732#26798
20M → 21M1853-35#26798#26833
21M → 35K295+24#26833#26809
35K → 23M3442-8#26809#26817
23M → 24M13103-90#26817#26907
24M → 40K680-74#26907#26981
40K → 25.2M034-34#26981#27015
25.2M → Finish850-42#27015#27057
TOTALS6351238-603
📊

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