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BOSTON MARATHON 2025

David Mcgregor

Bib: 5851•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
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
20:34
Rank: #4779
Start → 5K
6:37/mi
20:34 split
10K· 6.21 mi
41:09
Rank: #4687 (+92)
5K → 10K
6:38/mi
20:35 split
15K· 9.32 mi
1:01:55
Rank: #4745 (-58)
10K → 15K
6:41/mi
20:46 split
20K· 12.43 mi
1:24:24
Rank: #5863 (-1118)
15K → 20K
7:14/mi
22:29 split
Half· 13.11 mi
1:29:26
Rank: #6144 (-281)
20K → Half
7:23/mi
5:02 split
25K· 15.53 mi
1:48:15
Rank: #7054 (-910)
Half → 25K
7:46/mi
18:49 split
30K· 18.64 mi
2:15:35
Rank: #8620 (-1566)
25K → 30K
8:48/mi
27:20 split
20M
2:26:38
Rank: #8795 (-175)
30K → 20M
8:08/mi
11:03 split
21M
2:35:12
Rank: #8903 (-108)
20M → 21M
8:34/mi
8:34 split
35K· 21.75 mi
2:41:32
Rank: #9146 (-243)
21M → 35K
8:28/mi
6:20 split
23M
2:51:33
Rank: #9133 (+13)
35K → 23M
8:00/mi
10:01 split
24M
2:59:34
Rank: #9246 (-113)
23M → 24M
8:01/mi
8:01 split
40K· 24.85 mi
3:06:33
Rank: #9290 (-44)
24M → 40K
8:10/mi
6:59 split
25.2M
3:10:01
Rank: #9451 (-161)
40K → 25.2M
10:03/mi
3:28 split
Finish· 26.22 mi
3:18:31
Rank: #9686 (-235)
25.2M → Finish
8:20/mi
8:30 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:26
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:49:05
Pace8:19 /mi
📊Positive Split: 22.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3520:346:3720:34
6:37
-
10K
6.21 mi10:46:1041:096:3720:35
6:38
+0:01
15K
9.32 mi11:06:561:01:556:3920:46
6:41
+0:03
20K
12.43 mi11:29:251:24:246:4722:29
7:14
+0:33
Half
13.11 mi11:34:271:29:266:495:02
7:23
+0:09
25K
15.53 mi11:53:161:48:156:5818:49
7:46
+0:23
30K
18.64 mi12:20:362:15:357:1627:20
8:48
+1:02
20M
20.00 mi12:31:392:26:387:2011:03
8:08
-0:40
21M
21.00 mi12:40:132:35:127:238:34
8:34
+0:26
35K
21.75 mi12:46:332:41:327:266:20
8:28
-0:06
23M
23.00 mi12:56:342:51:337:2810:01
8:00
-0:28
24M
24.00 mi13:04:352:59:347:298:01
8:01
+0:01
40K
24.85 mi13:11:343:06:337:306:59
8:10
+0:09
25.2M
25.20 mi13:15:023:10:017:323:28
10:03
+1:53
Finish
26.22 mi13:23:323:18:317:358:30
8:20
-1:43

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

6:37 /mi

Average Pace

7:35 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:26

45% of race

Time at Steady Pace

1:03:23

32% of race

Time at Slower Pace

45:42

23% of race

Average Pace: 7:34 /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 mi10:25:3520:346:3720:34
6:37
#4779
10K
6.21 mi10:46:1041:096:3720:35
6:38
#4687
15K
9.32 mi11:06:561:01:556:3920:46
6:41
#4745
20K
12.43 mi11:29:251:24:246:4722:29
7:14
#5863
Half
13.11 mi11:34:271:29:266:495:02
7:23
#6144
25K
15.53 mi11:53:161:48:156:5818:49
7:46
#7054
30K
18.64 mi12:20:362:15:357:1627:20
8:48
#8620
20M
20.00 mi12:31:392:26:387:2011:03
8:08
#8795
21M
21.00 mi12:40:132:35:127:238:34
8:34
#8903
35K
21.75 mi12:46:332:41:327:266:20
8:28
#9146
23M
23.00 mi12:56:342:51:337:2810:01
8:00
#9133
24M
24.00 mi13:04:352:59:347:298:01
8:01
#9246
40K
24.85 mi13:11:343:06:337:306:59
8:10
#9290
25.2M
25.20 mi13:15:023:10:017:323:28
10:03
#9451
Finish
26.22 mi13:23:323:18:317:358:30
8:20
#9686
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4779448044804950(Top 17%)4613(Top 29%)4613(Top 82%)
10K6.21 mi3.10 mi4687+924393+874393+874674(Top 16%)4376(Top 27%)4376(Top 78%)
15K9.32 mi3.11 mi4745-584439-464439-464950(Top 17%)4613(Top 29%)4613(Top 82%)
20K12.43 mi3.11 mi5863-11185375-9365375-9368503(Top 30%)7165(Top 44%)7165(Top 127%)
Half13.11 mi0.68 mi6144-2815598-2235598-22310620(Top 37%)8342(Top 52%)8342(Top 148%)
25K15.53 mi2.42 mi7054-9106297-6996297-69912010(Top 42%)8848(Top 55%)8848(Top 157%)
30K18.64 mi3.11 mi8620-15667254-9577254-95716582(Top 58%)10740(Top 67%)10740(Top 190%)
20M20.00 mi1.36 mi8795-1757313-597313-5911297(Top 40%)8176(Top 51%)8176(Top 145%)
21M21.00 mi1.00 mi8903-1087346-337346-3310864(Top 38%)7803(Top 48%)7803(Top 138%)
35K21.75 mi0.75 mi9146-2437462-1167462-11615206(Top 54%)9805(Top 61%)9805(Top 174%)
23M23.00 mi1.25 mi9133+137410+527410+5210002(Top 35%)7231(Top 45%)7231(Top 128%)
24M24.00 mi1.00 mi9246-1137446-367446-3611314(Top 40%)7805(Top 48%)7805(Top 138%)
40K24.85 mi0.85 mi9290-447429+177429+1711329(Top 40%)7720(Top 48%)7720(Top 137%)
25.2M25.20 mi0.35 mi9451-1617496-677496-6717185(Top 61%)10426(Top 65%)10426(Top 185%)
Finish26.22 mi1.02 mi9686-2357577-817577-8115147(Top 53%)9531(Top 59%)9531(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4950

Males

4613

M18-39

4613

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4674

Males

4376

M18-39

4376

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4950

Males

4613

M18-39

4613

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8503

Males

7165

M18-39

7165

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10620

Males

8342

M18-39

8342

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

12010

Males

8848

M18-39

8848

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16582

Males

10740

M18-39

10740

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

11297

Males

8176

M18-39

8176

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10864

Males

7803

M18-39

7803

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

15206

Males

9805

M18-39

9805

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

10002

Males

7231

M18-39

7231

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

11314

Males

7805

M18-39

7805

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11329

Males

7720

M18-39

7720

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17185

Males

10426

M18-39

10426

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15147

Males

9531

M18-39

9531

Passing Analysis

Category:
Athletes Passed
754
Passed By
5661
Net Change
-4907
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4779
5K → 10K214122+92#4779#4687
10K → 15K101159-58#4687#4745
15K → 20K101128-1118#4745#5863
20K → Half0281-281#5863#6144
Half → 25K15925-910#6144#7054
25K → 30K201586-1566#7054#8620
30K → 20M57232-175#8620#8795
20M → 21M62170-108#8795#8903
21M → 35K21264-243#8903#9146
35K → 23M113100+13#9146#9133
23M → 24M47160-113#9133#9246
24M → 40K70114-44#9246#9290
40K → 25.2M7168-161#9290#9451
25.2M → Finish17252-235#9451#9686
TOTALS7545661-4907
📊

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