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BOSTON MARATHON 2025

Machteld De Vries

Bib: 17420•F

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
27:35
Rank: #21895
Start → 5K
27:35 | 8:53/mi
10K· 6.21 mi
54:42
Rank: #21461 (+434)
5K → 10K
27:07 | 8:44/mi
15K· 9.32 mi
1:21:17
Rank: #20852 (+609)
10K → 15K
26:35 | 8:33/mi
20K· 12.43 mi
1:49:46
Rank: #21083 (-231)
15K → 20K
28:29 | 9:10/mi
Half· 13.11 mi
1:55:24
Rank: #20939 (+144)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:16:30
Rank: #20557 (+382)
Half → 25K
21:06 | 8:42/mi
30K· 18.64 mi
2:45:14
Rank: #20205 (+352)
25K → 30K
28:44 | 9:15/mi
20M
2:57:11
Rank: #19877 (+328)
30K → 20M
11:57 | 8:48/mi
21M
3:06:30
Rank: #19605 (+272)
20M → 21M
9:19 | 9:19/mi
35K· 21.75 mi
3:12:58
Rank: #19483 (+122)
21M → 35K
6:28 | 8:39/mi
23M
3:23:38
Rank: #19164 (+319)
35K → 23M
10:40 | 8:31/mi
24M
3:31:58
Rank: #18943 (+221)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:39:08
Rank: #18719 (+224)
24M → 40K
7:10 | 8:23/mi
25.2M
3:42:14
Rank: #18601 (+118)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:50:31
Rank: #18437 (+164)
25.2M → Finish
8:17 | 8:08/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:55:24
Pace8:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:07
Pace8:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5527:358:5327:35
8:53
-
10K
6.21 mi11:46:0254:428:4827:07
8:44
-0:09
15K
9.32 mi12:12:371:21:178:4326:35
8:33
-0:11
20K
12.43 mi12:41:061:49:468:5028:29
9:10
+0:37
Half
13.11 mi12:46:441:55:248:485:38
8:15
-0:55
25K
15.53 mi13:07:502:16:308:4721:06
8:42
+0:27
30K
18.64 mi13:36:342:45:148:5228:44
9:15
+0:33
20M
20.00 mi13:48:312:57:118:5211:57
8:48
-0:27
21M
21.00 mi13:57:503:06:308:539:19
9:19
+0:31
35K
21.75 mi14:04:183:12:588:526:28
8:39
-0:40
23M
23.00 mi14:14:583:23:388:5110:40
8:31
-0:08
24M
24.00 mi14:23:183:31:588:508:20
8:20
-0:11
40K
24.85 mi14:30:283:39:088:497:10
8:23
+0:03
25.2M
25.20 mi14:33:343:42:148:493:06
8:59
+0:36
Finish
26.22 mi14:41:513:50:318:488:17
8:08
-0:51

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

8:08 /mi

Average Pace

8:48 /mi

Slowest Pace

9:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:53

70% of race

Time at Steady Pace

1:09:38

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:47 /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 mi11:18:5527:358:5327:35
8:53
#21895
10K
6.21 mi11:46:0254:428:4827:07
8:44
#21461
15K
9.32 mi12:12:371:21:178:4326:35
8:33
#20852
20K
12.43 mi12:41:061:49:468:5028:29
9:10
#21083
Half
13.11 mi12:46:441:55:248:485:38
8:15
#20939
25K
15.53 mi13:07:502:16:308:4721:06
8:42
#20557
30K
18.64 mi13:36:342:45:148:5228:44
9:15
#20205
20M
20.00 mi13:48:312:57:118:5211:57
8:48
#19877
21M
21.00 mi13:57:503:06:308:539:19
9:19
#19605
35K
21.75 mi14:04:183:12:588:526:28
8:39
#19483
23M
23.00 mi14:14:583:23:388:5110:40
8:31
#19164
24M
24.00 mi14:23:183:31:588:508:20
8:20
#18943
40K
24.85 mi14:30:283:39:088:497:10
8:23
#18719
25.2M
25.20 mi14:33:343:42:148:493:06
8:59
#18601
Finish
26.22 mi14:41:513:50:318:488:17
8:08
#18437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi218958567856719678(Top 69%)7260(Top 59%)7260(Top 133%)
10K6.21 mi3.10 mi21461+4348316+2518316+25121043(Top 74%)8038(Top 66%)8038(Top 147%)
15K9.32 mi3.11 mi20852+6097955+3617955+36119678(Top 69%)7260(Top 59%)7260(Top 133%)
20K12.43 mi3.11 mi21083-2318075-1208075-12021773(Top 77%)8468(Top 69%)8468(Top 155%)
Half13.11 mi0.68 mi20939+1447997+787997+7817732(Top 62%)6186(Top 51%)6186(Top 113%)
25K15.53 mi2.42 mi20557+3827803+1947803+19418411(Top 65%)6659(Top 54%)6659(Top 122%)
30K18.64 mi3.11 mi20205+3527640+1637640+16318895(Top 67%)7061(Top 58%)7061(Top 129%)
20M20.00 mi1.36 mi19877+3287480+1607480+16015661(Top 55%)5405(Top 44%)5405(Top 99%)
21M21.00 mi1.00 mi19605+2727349+1317349+13115275(Top 54%)5339(Top 44%)5339(Top 98%)
35K21.75 mi0.75 mi19483+1227291+587291+5816397(Top 58%)6017(Top 49%)6017(Top 110%)
23M23.00 mi1.25 mi19164+3197136+1557136+15513468(Top 47%)4520(Top 37%)4520(Top 83%)
24M24.00 mi1.00 mi18943+2217041+957041+9513520(Top 48%)4586(Top 38%)4586(Top 84%)
40K24.85 mi0.85 mi18719+2246947+946947+9412748(Top 45%)4322(Top 35%)4322(Top 79%)
25.2M25.20 mi0.35 mi18601+1186889+586889+5811872(Top 42%)3948(Top 32%)3948(Top 72%)
Finish26.22 mi1.02 mi18437+1646824+656824+6513837(Top 49%)4883(Top 40%)4883(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19678

Females

7260

F18-39

7260

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21043

Females

8038

F18-39

8038

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19678

Females

7260

F18-39

7260

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21773

Females

8468

F18-39

8468

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

17732

Females

6186

F18-39

6186

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18411

Females

6659

F18-39

6659

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

18895

Females

7061

F18-39

7061

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

15661

Females

5405

F18-39

5405

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15275

Females

5339

F18-39

5339

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16397

Females

6017

F18-39

6017

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

13468

Females

4520

F18-39

4520

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

13520

Females

4586

F18-39

4586

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12748

Females

4322

F18-39

4322

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11872

Females

3948

F18-39

3948

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13837

Females

4883

F18-39

4883

Passing Analysis

Category:
Athletes Passed
4059
Passed By
601
Net Change
+3458
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21895
5K → 10K543109+434#21895#21461
10K → 15K63122+609#21461#20852
15K → 20K132363-231#20852#21083
20K → Half1473+144#21083#20939
Half → 25K39816+382#20939#20557
25K → 30K40654+352#20557#20205
30K → 20M3302+328#20205#19877
20M → 21M2808+272#19877#19605
21M → 35K1275+122#19605#19483
35K → 23M3201+319#19483#19164
23M → 24M2265+221#19164#18943
24M → 40K2273+224#18943#18719
40K → 25.2M1180+118#18719#18601
25.2M → Finish17410+164#18601#18437
TOTALS4059601+3458
📊

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