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BOSTON MARATHON 2025

Mary Fortuin

Bib: 16021•F

NM

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 48%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:38/mi
23:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:13:05
↑ 67↓ 78
20K· 12.43 mi
8:08/mi
1:38:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:43:47
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:05:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:31:56
↑ 181↓ 1480.2%
20M
9:16/mi
2:44:32
↑ 64↓ 500.2%
21M
9:00/mi
2:53:32
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:00:25
↑ 17↓ 861.7%
23M
10:59/mi
3:14:10
↑ 23↓ 630.6%
24M
9:00/mi
3:23:10
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:30:52
↓ 200.3%
25.2M
10:06/mi
3:34:21
↑ 13↓ 160.2%
Finish· 26.22 mi
8:32/mi
3:43:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:47
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:59:16
Pace9:06 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:3123:447:3823:44
7:38
-
10K
6.21 mi11:21:2147:347:3923:50
7:40
+0:02
15K
9.32 mi11:46:521:13:057:5025:31
8:13
+0:33
20K
12.43 mi12:12:091:38:227:5525:17
8:08
-0:05
Half
13.11 mi12:17:341:43:477:555:25
7:56
-0:12
25K
15.53 mi12:39:042:05:178:0421:30
8:52
+0:56
30K
18.64 mi13:05:432:31:568:0926:39
8:35
-0:17
20M
20.00 mi13:18:192:44:328:1412:36
9:16
+0:41
21M
21.00 mi13:27:192:53:328:169:00
9:00
-0:16
35K
21.75 mi13:34:123:00:258:186:53
9:12
+0:12
23M
23.00 mi13:47:573:14:108:2713:45
10:59
+1:47
24M
24.00 mi13:56:573:23:108:289:00
9:00
-1:59
40K
24.85 mi14:04:393:30:528:297:42
9:00
0:00
25.2M
25.20 mi14:08:083:34:218:303:29
10:06
+1:06
Finish
26.22 mi14:16:503:43:038:318:42
8:32
-1:34

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

7:38 /mi

Average Pace

8:31 /mi

Slowest Pace

10:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:47

47% of race

Time at Steady Pace

1:42:02

46% of race

Time at Slower Pace

17:14

8% of race

Average Pace: 8:30 /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 mi10:57:3123:447:3823:44
7:38
#13445
10K
6.21 mi11:21:2147:347:3923:50
7:40
#13561
15K
9.32 mi11:46:521:13:057:5025:31
8:13
#15005
20K
12.43 mi12:12:091:38:227:5525:17
8:08
#15243
Half
13.11 mi12:17:341:43:477:555:25
7:56
#15248
25K
15.53 mi12:39:042:05:178:0421:30
8:52
#16067
30K
18.64 mi13:05:432:31:568:0926:39
8:35
#15878
20M
20.00 mi13:18:192:44:328:1412:36
9:16
#16062
21M
21.00 mi13:27:192:53:328:169:00
9:00
#15844
35K
21.75 mi13:34:123:00:258:186:53
9:12
#15951
23M
23.00 mi13:47:573:14:108:2713:45
10:59
#16628
24M
24.00 mi13:56:573:23:108:289:00
9:00
#16659
40K
24.85 mi14:04:393:30:528:297:42
9:00
#16632
25.2M
25.20 mi14:08:083:34:218:303:29
10:06
#16661
Finish
26.22 mi14:16:503:43:038:318:42
8:32
#16642
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi134453576357617473(Top 62%)5997(Top 49%)5997(Top 110%)
10K6.21 mi3.10 mi13561-1163684-1083684-10813655(Top 48%)3758(Top 31%)3758(Top 69%)
15K9.32 mi3.11 mi15005-14444559-8754559-87517473(Top 62%)5997(Top 49%)5997(Top 110%)
20K12.43 mi3.11 mi15243-2384720-1614720-16115917(Top 56%)5166(Top 42%)5166(Top 94%)
Half13.11 mi0.68 mi15248-54721-14721-115516(Top 55%)4916(Top 40%)4916(Top 90%)
25K15.53 mi2.42 mi16067-8195202-4815202-48119275(Top 68%)7127(Top 58%)7127(Top 130%)
30K18.64 mi3.11 mi15878+1895154+485154+4815267(Top 54%)5060(Top 41%)5060(Top 93%)
20M20.00 mi1.36 mi16062-1845304-1505304-15018164(Top 64%)6804(Top 56%)6804(Top 124%)
21M21.00 mi1.00 mi15844+2185215+895215+8913555(Top 48%)4403(Top 36%)4403(Top 81%)
35K21.75 mi0.75 mi15951-1075299-845299-8419178(Top 68%)7538(Top 62%)7538(Top 138%)
23M23.00 mi1.25 mi16628-6775714-4155714-41523184(Top 82%)9702(Top 79%)9702(Top 177%)
24M24.00 mi1.00 mi16659-315748-345748-3417380(Top 61%)6693(Top 55%)6693(Top 122%)
40K24.85 mi0.85 mi16632+275771-235771-2316356(Top 58%)6233(Top 51%)6233(Top 114%)
25.2M25.20 mi0.35 mi16661-295800-295800-2917489(Top 62%)6843(Top 56%)6843(Top 125%)
Finish26.22 mi1.02 mi16642+195813-135813-1316480(Top 58%)6290(Top 51%)6290(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17473

Females

5997

F18-39

5997

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13655

Females

3758

F18-39

3758

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17473

Females

5997

F18-39

5997

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15917

Females

5166

F18-39

5166

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15516

Females

4916

F18-39

4916

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19275

Females

7127

F18-39

7127

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15267

Females

5060

F18-39

5060

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18164

Females

6804

F18-39

6804

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13555

Females

4403

F18-39

4403

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19178

Females

7538

F18-39

7538

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23184

Females

9702

F18-39

9702

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17380

Females

6693

F18-39

6693

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16356

Females

6233

F18-39

6233

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17489

Females

6843

F18-39

6843

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16480

Females

6290

F18-39

6290

Passing Analysis

Category:
Athletes Passed
1423
Passed By
4620
Net Change
-3197
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13445
5K → 10K240356-116#13445#13561
10K → 15K241468-1444#13561#15005
15K → 20K139377-238#15005#15243
20K → Half3641-5#15243#15248
Half → 25K32851-819#15248#16067
25K → 30K322133+189#16067#15878
30K → 20M69253-184#15878#16062
20M → 21M23719+218#16062#15844
21M → 35K41148-107#15844#15951
35K → 23M18695-677#15951#16628
23M → 24M6798-31#16628#16659
24M → 40K9164+27#16659#16632
40K → 25.2M2251-29#16632#16661
25.2M → Finish8566+19#16661#16642
TOTALS14234620-3197
📊

Passing Visuals

Category:
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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