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BOSTON MARATHON 2025

Dennis Brinkworth

Bib: 4288•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
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
20:54
Rank: #5696
Start → 5K
20:54 | 6:44/mi
10K· 6.21 mi
41:22
Rank: #4992 (+704)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:57
Rank: #4776 (+216)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:23:21
Rank: #5063 (-287)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:27:55
Rank: #5061 (+2)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:34
Rank: #5681 (-620)
Half → 25K
17:39 | 7:17/mi
30K· 18.64 mi
2:09:54
Rank: #6458 (-777)
25K → 30K
24:20 | 7:50/mi
20M
2:20:19
Rank: #6494 (-36)
30K → 20M
10:25 | 7:40/mi
21M
2:28:40
Rank: #6567 (-73)
20M → 21M
8:21 | 8:21/mi
35K· 21.75 mi
2:34:18
Rank: #6597 (-30)
21M → 35K
5:38 | 7:32/mi
23M
2:44:50
Rank: #6882 (-285)
35K → 23M
10:32 | 8:25/mi
24M
2:53:39
Rank: #7240 (-358)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:02:55
Rank: #8058 (-818)
24M → 40K
9:16 | 10:50/mi
25.2M
3:06:34
Rank: #8259 (-201)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:15:11
Rank: #8618 (-359)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:55
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:47:16
Pace8:11 /mi
📊Positive Split: 22.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2020:546:4420:54
6:44
-
10K
6.21 mi10:43:4841:226:3920:28
6:35
-0:09
15K
9.32 mi11:04:231:01:576:3920:35
6:38
+0:03
20K
12.43 mi11:25:471:23:216:4221:24
6:53
+0:15
Half
13.11 mi11:30:211:27:556:424:34
6:42
-0:11
25K
15.53 mi11:48:001:45:346:4817:39
7:17
+0:35
30K
18.64 mi12:12:202:09:546:5824:20
7:50
+0:33
20M
20.00 mi12:22:452:20:197:0110:25
7:40
-0:10
21M
21.00 mi12:31:062:28:407:058:21
8:21
+0:41
35K
21.75 mi12:36:442:34:187:065:38
7:32
-0:49
23M
23.00 mi12:47:162:44:507:1010:32
8:25
+0:53
24M
24.00 mi12:56:052:53:397:148:49
8:49
+0:24
40K
24.85 mi13:05:213:02:557:229:16
10:50
+2:01
25.2M
25.20 mi13:09:003:06:347:243:39
10:35
-0:15
Finish
26.22 mi13:17:373:15:117:278:37
8:27
-2:08

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

6:35 /mi

Average Pace

7:27 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:55

45% of race

Time at Steady Pace

58:02

30% of race

Time at Slower Pace

49:14

25% of race

Average Pace: 7:27 /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 mi10:23:2020:546:4420:54
6:44
#5696
10K
6.21 mi10:43:4841:226:3920:28
6:35
#4992
15K
9.32 mi11:04:231:01:576:3920:35
6:38
#4776
20K
12.43 mi11:25:471:23:216:4221:24
6:53
#5063
Half
13.11 mi11:30:211:27:556:424:34
6:42
#5061
25K
15.53 mi11:48:001:45:346:4817:39
7:17
#5681
30K
18.64 mi12:12:202:09:546:5824:20
7:50
#6458
20M
20.00 mi12:22:452:20:197:0110:25
7:40
#6494
21M
21.00 mi12:31:062:28:407:058:21
8:21
#6567
35K
21.75 mi12:36:442:34:187:065:38
7:32
#6597
23M
23.00 mi12:47:162:44:507:1010:32
8:25
#6882
24M
24.00 mi12:56:052:53:397:148:49
8:49
#7240
40K
24.85 mi13:05:213:02:557:229:16
10:50
#8058
25.2M
25.20 mi13:09:003:06:347:243:39
10:35
#8259
Finish
26.22 mi13:17:373:15:117:278:37
8:27
#8618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5696526352634468(Top 16%)4189(Top 26%)4189(Top 74%)
10K6.21 mi3.10 mi4992+7044656+6074656+6074386(Top 15%)4119(Top 26%)4119(Top 73%)
15K9.32 mi3.11 mi4776+2164467+1894467+1894468(Top 16%)4189(Top 26%)4189(Top 74%)
20K12.43 mi3.11 mi5063-2874710-2434710-2436104(Top 21%)5517(Top 34%)5517(Top 98%)
Half13.11 mi0.68 mi5061+24703+74703+75277(Top 19%)4872(Top 30%)4872(Top 86%)
25K15.53 mi2.42 mi5681-6205212-5095212-5098202(Top 29%)6884(Top 43%)6884(Top 122%)
30K18.64 mi3.11 mi6458-7775801-5895801-58910149(Top 36%)7767(Top 48%)7767(Top 138%)
20M20.00 mi1.36 mi6494-365809-85809-88122(Top 29%)6520(Top 40%)6520(Top 116%)
21M21.00 mi1.00 mi6567-735838-295838-299505(Top 33%)7103(Top 44%)7103(Top 126%)
35K21.75 mi0.75 mi6597-305845-75845-78811(Top 31%)6742(Top 42%)6742(Top 119%)
23M23.00 mi1.25 mi6882-2856017-1726017-17212747(Top 45%)8574(Top 53%)8574(Top 152%)
24M24.00 mi1.00 mi7240-3586222-2056222-20516370(Top 58%)10185(Top 63%)10185(Top 181%)
40K24.85 mi0.85 mi8058-8186706-4846706-48422745(Top 80%)13105(Top 81%)13105(Top 232%)
25.2M25.20 mi0.35 mi8259-2016822-1166822-11619241(Top 68%)11400(Top 71%)11400(Top 202%)
Finish26.22 mi1.02 mi8618-3597000-1787000-17815892(Top 56%)9874(Top 61%)9874(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4468

Males

4189

M18-39

4189

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4386

Males

4119

M18-39

4119

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4468

Males

4189

M18-39

4189

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6104

Males

5517

M18-39

5517

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5277

Males

4872

M18-39

4872

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8202

Males

6884

M18-39

6884

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10149

Males

7767

M18-39

7767

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8122

Males

6520

M18-39

6520

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9505

Males

7103

M18-39

7103

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8811

Males

6742

M18-39

6742

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12747

Males

8574

M18-39

8574

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16370

Males

10185

M18-39

10185

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22745

Males

13105

M18-39

13105

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19241

Males

11400

M18-39

11400

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15892

Males

9874

M18-39

9874

Passing Analysis

Category:
Athletes Passed
1354
Passed By
4276
Net Change
-2922
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5696
5K → 10K72319+704#5696#4992
10K → 15K23822+216#4992#4776
15K → 20K63350-287#4776#5063
20K → Half3129+2#5063#5061
Half → 25K21641-620#5061#5681
25K → 30K48825-777#5681#6458
30K → 20M73109-36#6458#6494
20M → 21M44117-73#6494#6567
21M → 35K4171-30#6567#6597
35K → 23M34319-285#6597#6882
23M → 24M17375-358#6882#7240
24M → 40K4822-818#7240#8058
40K → 25.2M5206-201#8058#8259
25.2M → Finish12371-359#8259#8618
TOTALS13544276-2922
📊

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