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BOSTON MARATHON 2025

Joost Van Breda

Bib: 4711•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:35
Rank: #4819
Start → 5K
20:35 | 6:38/mi
10K· 6.21 mi
41:16
Rank: #4841 (-22)
5K → 10K
20:41 | 6:39/mi
15K· 9.32 mi
1:02:13
Rank: #5007 (-166)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:23:11
Rank: #4937 (+70)
15K → 20K
20:58 | 6:45/mi
Half· 13.11 mi
1:27:44
Rank: #4938 (-1)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:09
Rank: #4846 (+92)
Half → 25K
16:25 | 6:46/mi
30K· 18.64 mi
2:06:14
Rank: #4929 (-83)
25K → 30K
22:05 | 7:06/mi
20M
2:16:29
Rank: #5132 (-203)
30K → 20M
10:15 | 7:33/mi
21M
2:24:52
Rank: #5427 (-295)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
2:30:24
Rank: #5497 (-70)
21M → 35K
5:32 | 7:24/mi
23M
2:39:58
Rank: #5536 (-39)
35K → 23M
9:34 | 7:38/mi
24M
2:47:19
Rank: #5519 (+17)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
2:53:48
Rank: #5531 (-12)
24M → 40K
6:29 | 7:35/mi
25.2M
2:56:43
Rank: #5537 (-6)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:04:22
Rank: #5604 (-67)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:44
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:36:38
Pace7:22 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2520:356:3820:35
6:38
-
10K
6.21 mi10:46:0641:166:3820:41
6:39
+0:01
15K
9.32 mi11:07:031:02:136:4120:57
6:45
+0:06
20K
12.43 mi11:28:011:23:116:4220:58
6:45
0:00
Half
13.11 mi11:32:341:27:446:424:33
6:40
-0:05
25K
15.53 mi11:48:591:44:096:4216:25
6:46
+0:06
30K
18.64 mi12:11:042:06:146:4622:05
7:06
+0:20
20M
20.00 mi12:21:192:16:296:4910:15
7:33
+0:27
21M
21.00 mi12:29:422:24:526:548:23
8:23
+0:50
35K
21.75 mi12:35:142:30:246:555:32
7:24
-0:59
23M
23.00 mi12:44:482:39:586:579:34
7:38
+0:14
24M
24.00 mi12:52:092:47:196:587:21
7:21
-0:17
40K
24.85 mi12:58:382:53:487:006:29
7:35
+0:14
25.2M
25.20 mi13:01:332:56:437:012:55
8:27
+0:52
Finish
26.22 mi13:09:123:04:227:027:39
7:30
-0:57

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

6:38 /mi

Average Pace

7:02 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:09

56% of race

Time at Steady Pace

1:08:55

37% of race

Time at Slower Pace

11:18

6% of race

Average Pace: 7:02 /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 mi10:25:2520:356:3820:35
6:38
#4819
10K
6.21 mi10:46:0641:166:3820:41
6:39
#4841
15K
9.32 mi11:07:031:02:136:4120:57
6:45
#5007
20K
12.43 mi11:28:011:23:116:4220:58
6:45
#4937
Half
13.11 mi11:32:341:27:446:424:33
6:40
#4938
25K
15.53 mi11:48:591:44:096:4216:25
6:46
#4846
30K
18.64 mi12:11:042:06:146:4622:05
7:06
#4929
20M
20.00 mi12:21:192:16:296:4910:15
7:33
#5132
21M
21.00 mi12:29:422:24:526:548:23
8:23
#5427
35K
21.75 mi12:35:142:30:246:555:32
7:24
#5497
23M
23.00 mi12:44:482:39:586:579:34
7:38
#5536
24M
24.00 mi12:52:092:47:196:587:21
7:21
#5519
40K
24.85 mi12:58:382:53:487:006:29
7:35
#5531
25.2M
25.20 mi13:01:332:56:437:012:55
8:27
#5537
Finish
26.22 mi13:09:123:04:227:027:39
7:30
#5604
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4819451245125512(Top 19%)5058(Top 31%)5058(Top 90%)
10K6.21 mi3.10 mi4841-224526-144526-144956(Top 17%)4626(Top 29%)4626(Top 82%)
15K9.32 mi3.11 mi5007-1664667-1414667-1415512(Top 19%)5058(Top 31%)5058(Top 90%)
20K12.43 mi3.11 mi4937+704602+654602+654843(Top 17%)4482(Top 28%)4482(Top 79%)
Half13.11 mi0.68 mi4938-14600+24600+25055(Top 18%)4684(Top 29%)4684(Top 83%)
25K15.53 mi2.42 mi4846+924506+944506+944665(Top 16%)4302(Top 27%)4302(Top 76%)
30K18.64 mi3.11 mi4929-834557-514557-515362(Top 19%)4828(Top 30%)4828(Top 86%)
20M20.00 mi1.36 mi5132-2034717-1604717-1607279(Top 26%)6003(Top 37%)6003(Top 106%)
21M21.00 mi1.00 mi5427-2954958-2414958-2419708(Top 34%)7200(Top 45%)7200(Top 128%)
35K21.75 mi0.75 mi5497-705009-515009-517845(Top 28%)6199(Top 38%)6199(Top 110%)
23M23.00 mi1.25 mi5536-395024-155024-157495(Top 26%)5864(Top 36%)5864(Top 104%)
24M24.00 mi1.00 mi5519+174994+304994+306704(Top 24%)5351(Top 33%)5351(Top 95%)
40K24.85 mi0.85 mi5531-124991+34991+37282(Top 26%)5588(Top 35%)5588(Top 99%)
25.2M25.20 mi0.35 mi5537-64988+34988+38475(Top 30%)6160(Top 38%)6160(Top 109%)
Finish26.22 mi1.02 mi5604-675021-335021-339200(Top 32%)6545(Top 41%)6545(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5512

Males

5058

M18-39

5058

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4956

Males

4626

M18-39

4626

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5512

Males

5058

M18-39

5058

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4843

Males

4482

M18-39

4482

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5055

Males

4684

M18-39

4684

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4665

Males

4302

M18-39

4302

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5362

Males

4828

M18-39

4828

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7279

Males

6003

M18-39

6003

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9708

Males

7200

M18-39

7200

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7845

Males

6199

M18-39

6199

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7495

Males

5864

M18-39

5864

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6704

Males

5351

M18-39

5351

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7282

Males

5588

M18-39

5588

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8475

Males

6160

M18-39

6160

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9200

Males

6545

M18-39

6545

Passing Analysis

Category:
Athletes Passed
989
Passed By
1774
Net Change
-785
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4819
5K → 10K154176-22#4819#4841
10K → 15K66232-166#4841#5007
15K → 20K16090+70#5007#4937
20K → Half2021-1#4937#4938
Half → 25K14654+92#4938#4846
25K → 30K137220-83#4846#4929
30K → 20M29232-203#4929#5132
20M → 21M21316-295#5132#5427
21M → 35K2595-70#5427#5497
35K → 23M74113-39#5497#5536
23M → 24M6043+17#5536#5519
24M → 40K4456-12#5519#5531
40K → 25.2M2531-6#5531#5537
25.2M → Finish2895-67#5537#5604
TOTALS9891774-785
📊

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