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BOSTON MARATHON 2025

Nico De Vries

Bib: 660•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Masters (Masters Men)
#0 / 10463
Top 0.6%
Division (M40-44)
#0 / 2247
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:22
Rank: #818
Start → 5K
18:22 | 5:55/mi
10K· 6.21 mi
36:15
Rank: #657 (+161)
5K → 10K
17:53 | 5:45/mi
15K· 9.32 mi
54:08
Rank: #586 (+71)
10K → 15K
17:53 | 5:45/mi
20K· 12.43 mi
1:12:16
Rank: #550 (+36)
15K → 20K
18:08 | 5:50/mi
Half· 13.11 mi
1:16:16
Rank: #554 (-4)
20K → Half
4:00 | 5:52/mi
25K· 15.53 mi
1:30:31
Rank: #541 (+13)
Half → 25K
14:15 | 5:53/mi
30K· 18.64 mi
1:49:22
Rank: #534 (+7)
25K → 30K
18:51 | 6:04/mi
20M
1:57:44
Rank: #533 (+1)
30K → 20M
8:22 | 6:09/mi
21M
2:04:11
Rank: #531 (+2)
20M → 21M
6:27 | 6:27/mi
35K· 21.75 mi
2:08:47
Rank: #539 (-8)
21M → 35K
4:36 | 6:09/mi
23M
2:16:47
Rank: #555 (-16)
35K → 23M
8:00 | 6:23/mi
24M
2:23:00
Rank: #560 (-5)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:28:20
Rank: #560
24M → 40K
5:20 | 6:14/mi
25.2M
2:30:41
Rank: #555 (+5)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:36:45
Rank: #552 (+3)
25.2M → Finish
6:04 | 5:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:16
Pace5:49 /mi
2nd Half
Distance13.11 mi
Time1:20:29
Pace6:08 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3918:225:5518:22
5:55
-
10K
6.21 mi10:36:3236:155:5017:53
5:45
-0:10
15K
9.32 mi10:54:2554:085:4817:53
5:45
0:00
20K
12.43 mi11:12:331:12:165:4918:08
5:50
+0:05
Half
13.11 mi11:16:331:16:165:494:00
5:52
+0:02
25K
15.53 mi11:30:481:30:315:5014:15
5:53
+0:01
30K
18.64 mi11:49:391:49:225:5218:51
6:04
+0:11
20M
20.00 mi11:58:011:57:445:538:22
6:09
+0:05
21M
21.00 mi12:04:282:04:115:556:27
6:27
+0:18
35K
21.75 mi12:09:042:08:475:554:36
6:09
-0:18
23M
23.00 mi12:17:042:16:475:578:00
6:23
+0:14
24M
24.00 mi12:23:172:23:005:586:13
6:13
-0:10
40K
24.85 mi12:28:372:28:205:585:20
6:14
+0:01
25.2M
25.20 mi12:30:582:30:415:592:21
6:49
+0:35
Finish
26.22 mi12:37:022:36:455:596:04
5:57
-0:52

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

5:45 /mi

Average Pace

5:59 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:57

89% of race

Time at Steady Pace

14:27

9% of race

Time at Slower Pace

2:21

1% of race

Average Pace: 5:59 /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 mi10:18:3918:225:5518:22
5:55
#818
10K
6.21 mi10:36:3236:155:5017:53
5:45
#657
15K
9.32 mi10:54:2554:085:4817:53
5:45
#586
20K
12.43 mi11:12:331:12:165:4918:08
5:50
#550
Half
13.11 mi11:16:331:16:165:494:00
5:52
#554
25K
15.53 mi11:30:481:30:315:5014:15
5:53
#541
30K
18.64 mi11:49:391:49:225:5218:51
6:04
#534
20M
20.00 mi11:58:011:57:445:538:22
6:09
#533
21M
21.00 mi12:04:282:04:115:556:27
6:27
#531
35K
21.75 mi12:09:042:08:475:554:36
6:09
#539
23M
23.00 mi12:17:042:16:475:578:00
6:23
#555
24M
24.00 mi12:23:172:23:005:586:13
6:13
#560
40K
24.85 mi12:28:372:28:205:585:20
6:14
#560
25.2M
25.20 mi12:30:582:30:415:592:21
6:49
#555
Finish
26.22 mi12:37:022:36:455:596:04
5:57
#552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi818764764460(Top 2%)427(Top 3%)427(Top 19%)
10K6.21 mi3.10 mi657+161611+153611+153537(Top 2%)499(Top 3%)499(Top 22%)
15K9.32 mi3.11 mi586+71543+68543+68460(Top 2%)427(Top 3%)427(Top 19%)
20K12.43 mi3.11 mi550+36507+36507+36491(Top 2%)455(Top 3%)455(Top 20%)
Half13.11 mi0.68 mi554-4512-5512-5718(Top 3%)672(Top 4%)672(Top 30%)
25K15.53 mi2.42 mi541+13499+13499+13528(Top 2%)491(Top 3%)491(Top 22%)
30K18.64 mi3.11 mi534+7489+10489+10613(Top 2%)572(Top 4%)572(Top 25%)
20M20.00 mi1.36 mi533+1488+1488+1622(Top 2%)582(Top 4%)582(Top 26%)
21M21.00 mi1.00 mi531+2488488583(Top 2%)547(Top 3%)547(Top 24%)
35K21.75 mi0.75 mi539-8495-7495-71049(Top 4%)987(Top 6%)987(Top 44%)
23M23.00 mi1.25 mi555-16510-15510-151086(Top 4%)1026(Top 6%)1026(Top 46%)
24M24.00 mi1.00 mi560-5516-6516-61049(Top 4%)985(Top 6%)985(Top 44%)
40K24.85 mi0.85 mi560515+1515+1801(Top 3%)750(Top 5%)750(Top 33%)
25.2M25.20 mi0.35 mi555+5510+5510+5963(Top 3%)881(Top 5%)881(Top 39%)
Finish26.22 mi1.02 mi552+3509+1509+1800(Top 3%)753(Top 5%)753(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

460

Males

427

M40-44

427

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

537

Males

499

M40-44

499

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

460

Males

427

M40-44

427

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

491

Males

455

M40-44

455

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

718

Males

672

M40-44

672

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

528

Males

491

M40-44

491

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

613

Males

572

M40-44

572

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

622

Males

582

M40-44

582

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

583

Males

547

M40-44

547

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1049

Males

987

M40-44

987

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1086

Males

1026

M40-44

1026

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1049

Males

985

M40-44

985

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

801

Males

750

M40-44

750

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

963

Males

881

M40-44

881

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

800

Males

753

M40-44

753

Passing Analysis

Category:
Athletes Passed
413
Passed By
147
Net Change
+266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#818
5K → 10K1643+161#818#657
10K → 15K710+71#657#586
15K → 20K404+36#586#550
20K → Half48-4#550#554
Half → 25K2613+13#554#541
25K → 30K3023+7#541#534
30K → 20M1413+1#534#533
20M → 21M108+2#533#531
21M → 35K715-8#531#539
35K → 23M925-16#539#555
23M → 24M1015-5#555#560
24M → 40K880#560#560
40K → 25.2M72+5#560#555
25.2M → Finish1310+3#555#552
TOTALS413147+266
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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