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BOSTON MARATHON 2025

Trevor Dieleman

Bib: 3825•M

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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Division (M18-39)
#0 / 5642
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:57
Rank: #1427
Start → 5K
18:57 | 6:06/mi
10K· 6.21 mi
38:15
Rank: #1659 (-232)
5K → 10K
19:18 | 6:13/mi
15K· 9.32 mi
58:29
Rank: #2224 (-565)
10K → 15K
20:14 | 6:31/mi
20K· 12.43 mi
1:18:40
Rank: #2432 (-208)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:23:04
Rank: #2476 (-44)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:38:56
Rank: #2567 (-91)
Half → 25K
15:52 | 6:33/mi
30K· 18.64 mi
2:00:55
Rank: #2954 (-387)
25K → 30K
21:59 | 7:05/mi
20M
2:10:53
Rank: #3129 (-175)
30K → 20M
9:58 | 7:20/mi
21M
2:19:19
Rank: #3461 (-332)
20M → 21M
8:26 | 8:26/mi
35K· 21.75 mi
2:24:50
Rank: #3576 (-115)
21M → 35K
5:31 | 7:22/mi
23M
2:34:11
Rank: #3699 (-123)
35K → 23M
9:21 | 7:28/mi
24M
2:41:29
Rank: #3801 (-102)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:47:54
Rank: #3901 (-100)
24M → 40K
6:25 | 7:30/mi
25.2M
2:50:54
Rank: #3996 (-95)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
2:58:25
Rank: #4151 (-155)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:04
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:35:21
Pace7:16 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5318:576:0618:57
6:06
-
10K
6.21 mi10:40:1138:156:0919:18
6:13
+0:07
15K
9.32 mi11:00:2558:296:1620:14
6:31
+0:18
20K
12.43 mi11:20:361:18:406:2020:11
6:30
-0:01
Half
13.11 mi11:25:001:23:046:204:24
6:27
-0:03
25K
15.53 mi11:40:521:38:566:2215:52
6:33
+0:06
30K
18.64 mi12:02:512:00:556:2921:59
7:05
+0:32
20M
20.00 mi12:12:492:10:536:339:58
7:20
+0:15
21M
21.00 mi12:21:152:19:196:388:26
8:26
+1:06
35K
21.75 mi12:26:462:24:506:405:31
7:22
-1:04
23M
23.00 mi12:36:072:34:116:429:21
7:28
+0:06
24M
24.00 mi12:43:252:41:296:447:18
7:18
-0:10
40K
24.85 mi12:49:502:47:546:456:25
7:30
+0:12
25.2M
25.20 mi12:52:502:50:546:473:00
8:42
+1:12
Finish
26.22 mi13:00:212:58:256:497:31
7:23
-1:19

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

6:06 /mi

Average Pace

6:49 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:56

55% of race

Time at Steady Pace

1:08:03

38% of race

Time at Slower Pace

11:26

6% of race

Average Pace: 6:48 /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 mi10:20:5318:576:0618:57
6:06
#1427
10K
6.21 mi10:40:1138:156:0919:18
6:13
#1659
15K
9.32 mi11:00:2558:296:1620:14
6:31
#2224
20K
12.43 mi11:20:361:18:406:2020:11
6:30
#2432
Half
13.11 mi11:25:001:23:046:204:24
6:27
#2476
25K
15.53 mi11:40:521:38:566:2215:52
6:33
#2567
30K
18.64 mi12:02:512:00:556:2921:59
7:05
#2954
20M
20.00 mi12:12:492:10:536:339:58
7:20
#3129
21M
21.00 mi12:21:152:19:196:388:26
8:26
#3461
35K
21.75 mi12:26:462:24:506:405:31
7:22
#3576
23M
23.00 mi12:36:072:34:116:429:21
7:28
#3699
24M
24.00 mi12:43:252:41:296:447:18
7:18
#3801
40K
24.85 mi12:49:502:47:546:456:25
7:30
#3901
25.2M
25.20 mi12:52:502:50:546:473:00
8:42
#3996
Finish
26.22 mi13:00:212:58:256:497:31
7:23
#4151
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1427135913593643(Top 13%)3441(Top 21%)3441(Top 61%)
10K6.21 mi3.10 mi1659-2321579-2201579-2201976(Top 7%)1880(Top 12%)1880(Top 33%)
15K9.32 mi3.11 mi2224-5652123-5442123-5443643(Top 13%)3441(Top 21%)3441(Top 61%)
20K12.43 mi3.11 mi2432-2082320-1972320-1973110(Top 11%)2953(Top 18%)2953(Top 52%)
Half13.11 mi0.68 mi2476-442363-432363-433366(Top 12%)3192(Top 20%)3192(Top 57%)
25K15.53 mi2.42 mi2567-912451-882451-883123(Top 11%)2957(Top 18%)2957(Top 52%)
30K18.64 mi3.11 mi2954-3872814-3632814-3635166(Top 18%)4674(Top 29%)4674(Top 83%)
20M20.00 mi1.36 mi3129-1752966-1522966-1525965(Top 21%)5167(Top 32%)5167(Top 92%)
21M21.00 mi1.00 mi3461-3323269-3033269-30310003(Top 35%)7354(Top 46%)7354(Top 130%)
35K21.75 mi0.75 mi3576-1153366-973366-977645(Top 27%)6062(Top 38%)6062(Top 107%)
23M23.00 mi1.25 mi3699-1233471-1053471-1056408(Top 23%)5221(Top 32%)5221(Top 93%)
24M24.00 mi1.00 mi3801-1023550-793550-796377(Top 22%)5132(Top 32%)5132(Top 91%)
40K24.85 mi0.85 mi3901-1003623-733623-736799(Top 24%)5304(Top 33%)5304(Top 94%)
25.2M25.20 mi0.35 mi3996-953704-813704-819879(Top 35%)6855(Top 43%)6855(Top 121%)
Finish26.22 mi1.02 mi4151-1553825-1213825-1218273(Top 29%)6049(Top 38%)6049(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3643

Males

3441

M18-39

3441

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1976

Males

1880

M18-39

1880

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3643

Males

3441

M18-39

3441

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3110

Males

2953

M18-39

2953

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3366

Males

3192

M18-39

3192

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3123

Males

2957

M18-39

2957

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5166

Males

4674

M18-39

4674

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5965

Males

5167

M18-39

5167

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

10003

Males

7354

M18-39

7354

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7645

Males

6062

M18-39

6062

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6408

Males

5221

M18-39

5221

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

6377

Males

5132

M18-39

5132

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6799

Males

5304

M18-39

5304

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9879

Males

6855

M18-39

6855

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8273

Males

6049

M18-39

6049

Passing Analysis

Category:
Athletes Passed
258
Passed By
2982
Net Change
-2724
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1427
5K → 10K13245-232#1427#1659
10K → 15K6571-565#1659#2224
15K → 20K27235-208#2224#2432
20K → Half650-44#2432#2476
Half → 25K33124-91#2476#2567
25K → 30K28415-387#2567#2954
30K → 20M25200-175#2954#3129
20M → 21M4336-332#3129#3461
21M → 35K15130-115#3461#3576
35K → 23M37160-123#3576#3699
23M → 24M27129-102#3699#3801
24M → 40K21121-100#3801#3901
40K → 25.2M398-95#3901#3996
25.2M → Finish13168-155#3996#4151
TOTALS2582982-2724
📊

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