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BOSTON MARATHON 2025

Erik Grimba

Bib: 5823•M

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Overall
#0 / 28404
Top 32%
Gender (Male)
#0 / 16105
Top 45%
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
23:10
Rank: #11834
Start → 5K
23:10 | 7:27/mi
10K· 6.21 mi
46:00
Rank: #11255 (+579)
5K → 10K
22:50 | 7:21/mi
15K· 9.32 mi
1:08:54
Rank: #10984 (+271)
10K → 15K
22:54 | 7:22/mi
20K· 12.43 mi
1:31:50
Rank: #10655 (+329)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:36:44
Rank: #10559 (+96)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:54:37
Rank: #10256 (+303)
Half → 25K
17:53 | 7:23/mi
30K· 18.64 mi
2:18:11
Rank: #9809 (+447)
25K → 30K
23:34 | 7:35/mi
20M
2:28:47
Rank: #9699 (+110)
30K → 20M
10:36 | 7:48/mi
21M
2:37:03
Rank: #9620 (+79)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:42:45
Rank: #9600 (+20)
21M → 35K
5:42 | 7:37/mi
23M
2:52:25
Rank: #9465 (+135)
35K → 23M
9:40 | 7:43/mi
24M
2:59:59
Rank: #9365 (+100)
23M → 24M
7:34 | 7:34/mi
40K· 24.85 mi
3:06:35
Rank: #9302 (+63)
24M → 40K
6:36 | 7:43/mi
25.2M
3:09:27
Rank: #9249 (+53)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:16:43
Rank: #9090 (+159)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:44
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:39:59
Pace7:38 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0023:107:2723:10
7:27
-
10K
6.21 mi11:36:5046:007:2422:50
7:21
-0:06
15K
9.32 mi11:59:441:08:547:2422:54
7:22
+0:01
20K
12.43 mi12:22:401:31:507:2322:56
7:23
+0:01
Half
13.11 mi12:27:341:36:447:234:54
7:11
-0:12
25K
15.53 mi12:45:271:54:377:2317:53
7:23
+0:12
30K
18.64 mi13:09:012:18:117:2523:34
7:35
+0:12
20M
20.00 mi13:19:372:28:477:2610:36
7:48
+0:13
21M
21.00 mi13:27:532:37:037:298:16
8:16
+0:28
35K
21.75 mi13:33:352:42:457:295:42
7:37
-0:39
23M
23.00 mi13:43:152:52:257:309:40
7:43
+0:06
24M
24.00 mi13:50:492:59:597:307:34
7:34
-0:09
40K
24.85 mi13:57:253:06:357:306:36
7:43
+0:09
25.2M
25.20 mi14:00:173:09:277:312:52
8:19
+0:36
Finish
26.22 mi14:07:333:16:437:307:16
7:08
-1:11

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

7:08 /mi

Average Pace

7:30 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:35

94% of race

Time at Steady Pace

11:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi11:14:0023:107:2723:10
7:27
#11834
10K
6.21 mi11:36:5046:007:2422:50
7:21
#11255
15K
9.32 mi11:59:441:08:547:2422:54
7:22
#10984
20K
12.43 mi12:22:401:31:507:2322:56
7:23
#10655
Half
13.11 mi12:27:341:36:447:234:54
7:11
#10559
25K
15.53 mi12:45:271:54:377:2317:53
7:23
#10256
30K
18.64 mi13:09:012:18:117:2523:34
7:35
#9809
20M
20.00 mi13:19:372:28:477:2610:36
7:48
#9699
21M
21.00 mi13:27:532:37:037:298:16
8:16
#9620
35K
21.75 mi13:33:352:42:457:295:42
7:37
#9600
23M
23.00 mi13:43:152:52:257:309:40
7:43
#9465
24M
24.00 mi13:50:492:59:597:307:34
7:34
#9365
40K
24.85 mi13:57:253:06:357:306:36
7:43
#9302
25.2M
25.20 mi14:00:173:09:277:312:52
8:19
#9249
Finish
26.22 mi14:07:333:16:437:307:16
7:08
#9090
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi118349095909510582(Top 37%)8385(Top 52%)8385(Top 149%)
10K6.21 mi3.10 mi11255+5798797+2988797+29810720(Top 38%)8517(Top 53%)8517(Top 151%)
15K9.32 mi3.11 mi10984+2718643+1548643+15410582(Top 37%)8385(Top 52%)8385(Top 149%)
20K12.43 mi3.11 mi10655+3298447+1968447+1969717(Top 34%)7856(Top 49%)7856(Top 139%)
Half13.11 mi0.68 mi10559+968403+448403+448902(Top 31%)7424(Top 46%)7424(Top 132%)
25K15.53 mi2.42 mi10256+3038196+2078196+2078948(Top 32%)7307(Top 45%)7307(Top 130%)
30K18.64 mi3.11 mi9809+4477910+2867910+2868342(Top 29%)6794(Top 42%)6794(Top 120%)
20M20.00 mi1.36 mi9699+1107816+947816+949014(Top 32%)7001(Top 43%)7001(Top 124%)
21M21.00 mi1.00 mi9620+797747+697747+698989(Top 32%)6808(Top 42%)6808(Top 121%)
35K21.75 mi0.75 mi9600+207718+297718+299434(Top 33%)7077(Top 44%)7077(Top 125%)
23M23.00 mi1.25 mi9465+1357602+1167602+1168018(Top 28%)6174(Top 38%)6174(Top 109%)
24M24.00 mi1.00 mi9365+1007508+947508+948150(Top 29%)6208(Top 39%)6208(Top 110%)
40K24.85 mi0.85 mi9302+637434+747434+748203(Top 29%)6102(Top 38%)6102(Top 108%)
25.2M25.20 mi0.35 mi9249+537387+477387+477688(Top 27%)5747(Top 36%)5747(Top 102%)
Finish26.22 mi1.02 mi9090+1597260+1277260+1276572(Top 23%)5084(Top 32%)5084(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10582

Males

8385

M18-39

8385

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10720

Males

8517

M18-39

8517

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10582

Males

8385

M18-39

8385

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9717

Males

7856

M18-39

7856

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8902

Males

7424

M18-39

7424

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8948

Males

7307

M18-39

7307

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8342

Males

6794

M18-39

6794

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9014

Males

7001

M18-39

7001

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8989

Males

6808

M18-39

6808

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9434

Males

7077

M18-39

7077

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

8018

Males

6174

M18-39

6174

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8150

Males

6208

M18-39

6208

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8203

Males

6102

M18-39

6102

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7688

Males

5747

M18-39

5747

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6572

Males

5084

M18-39

5084

Passing Analysis

Category:
Athletes Passed
3268*
Passed By
523
Net Change
+2744
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11834
5K → 10K64869+579#11834#11255
10K → 15K33766+271#11255#10984
15K → 20K36031+329#10984#10655
20K → Half1004+96#10655#10559
Half → 25K32825+303#10559#10256
25K → 30K484*37+447#10256#9809
30K → 20M16453+110#9809#9699
20M → 21M12243+79#9699#9620
21M → 35K7353+20#9620#9600
35K → 23M17439+135#9600#9465
23M → 24M13131+100#9465#9365
24M → 40K10845+63#9365#9302
40K → 25.2M6512+53#9302#9249
25.2M → Finish17415+159#9249#9090
TOTALS3268*523+2744

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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