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BOSTON MARATHON 2025

Graeme Birrell

Bib: 3086•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
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
20:18
Rank: #4099
Start → 5K
20:18 | 6:32/mi
10K· 6.21 mi
41:02
Rank: #4541 (-442)
5K → 10K
20:44 | 6:40/mi
15K· 9.32 mi
1:01:53
Rank: #4708 (-167)
10K → 15K
20:51 | 6:43/mi
20K· 12.43 mi
1:23:42
Rank: #5325 (-617)
15K → 20K
21:49 | 7:01/mi
Half· 13.11 mi
1:28:22
Rank: #5387 (-62)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:46:08
Rank: #6005 (-618)
Half → 25K
17:46 | 7:20/mi
30K· 18.64 mi
2:09:34
Rank: #6333 (-328)
25K → 30K
23:26 | 7:33/mi
20M
2:21:18
Rank: #6799 (-466)
30K → 20M
11:44 | 8:38/mi
21M
2:30:17
Rank: #7102 (-303)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
2:36:09
Rank: #7192 (-90)
21M → 35K
5:52 | 7:51/mi
23M
2:46:21
Rank: #7340 (-148)
35K → 23M
10:12 | 8:09/mi
24M
2:54:21
Rank: #7441 (-101)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
3:01:14
Rank: #7526 (-85)
24M → 40K
6:53 | 8:03/mi
25.2M
3:04:41
Rank: #7675 (-149)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:13:04
Rank: #7920 (-245)
25.2M → Finish
8:23 | 8:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:22
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:44:42
Pace7:59 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1120:186:3220:18
6:32
-
10K
6.21 mi10:41:5541:026:3620:44
6:40
+0:08
15K
9.32 mi11:02:461:01:536:3820:51
6:43
+0:03
20K
12.43 mi11:24:351:23:426:4421:49
7:01
+0:18
Half
13.11 mi11:29:151:28:226:444:40
6:50
-0:11
25K
15.53 mi11:47:011:46:086:5017:46
7:20
+0:30
30K
18.64 mi12:10:272:09:346:5723:26
7:33
+0:13
20M
20.00 mi12:22:112:21:187:0411:44
8:38
+1:05
21M
21.00 mi12:31:102:30:177:098:59
8:59
+0:21
35K
21.75 mi12:37:022:36:097:115:52
7:51
-1:08
23M
23.00 mi12:47:142:46:217:1410:12
8:09
+0:18
24M
24.00 mi12:55:142:54:217:168:00
8:00
-0:09
40K
24.85 mi13:02:073:01:147:186:53
8:03
+0:03
25.2M
25.20 mi13:05:343:04:417:203:27
10:00
+1:57
Finish
26.22 mi13:13:573:13:047:228:23
8:14
-1:46

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

6:32 /mi

Average Pace

7:22 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:08

55% of race

Time at Steady Pace

1:02:46

33% of race

Time at Slower Pace

24:10

13% of race

Average Pace: 7:22 /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 mi10:21:1120:186:3220:18
6:32
#4099
10K
6.21 mi10:41:5541:026:3620:44
6:40
#4541
15K
9.32 mi11:02:461:01:536:3820:51
6:43
#4708
20K
12.43 mi11:24:351:23:426:4421:49
7:01
#5325
Half
13.11 mi11:29:151:28:226:444:40
6:50
#5387
25K
15.53 mi11:47:011:46:086:5017:46
7:20
#6005
30K
18.64 mi12:10:272:09:346:5723:26
7:33
#6333
20M
20.00 mi12:22:112:21:187:0411:44
8:38
#6799
21M
21.00 mi12:31:102:30:177:098:59
8:59
#7102
35K
21.75 mi12:37:022:36:097:115:52
7:51
#7192
23M
23.00 mi12:47:142:46:217:1410:12
8:09
#7340
24M
24.00 mi12:55:142:54:217:168:00
8:00
#7441
40K
24.85 mi13:02:073:01:147:186:53
8:03
#7526
25.2M
25.20 mi13:05:343:04:417:203:27
10:00
#7675
Finish
26.22 mi13:13:573:13:047:228:23
8:14
#7920
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4099386638665194(Top 18%)4807(Top 30%)4807(Top 85%)
10K6.21 mi3.10 mi4541-4424267-4014267-4015111(Top 18%)4763(Top 30%)4763(Top 84%)
15K9.32 mi3.11 mi4708-1674407-1404407-1405194(Top 18%)4807(Top 30%)4807(Top 85%)
20K12.43 mi3.11 mi5325-6174928-5214928-5217010(Top 25%)6212(Top 39%)6212(Top 110%)
Half13.11 mi0.68 mi5387-624981-534981-536505(Top 23%)5845(Top 36%)5845(Top 104%)
25K15.53 mi2.42 mi6005-6185463-4825463-4828561(Top 30%)7083(Top 44%)7083(Top 126%)
30K18.64 mi3.11 mi6333-3285698-2355698-2358032(Top 28%)6609(Top 41%)6609(Top 117%)
20M20.00 mi1.36 mi6799-4666033-3356033-33514601(Top 51%)9724(Top 60%)9724(Top 172%)
21M21.00 mi1.00 mi7102-3036223-1906223-19013359(Top 47%)9018(Top 56%)9018(Top 160%)
35K21.75 mi0.75 mi7192-906265-426265-4211074(Top 39%)7885(Top 49%)7885(Top 140%)
23M23.00 mi1.25 mi7340-1486315-506315-5010997(Top 39%)7742(Top 48%)7742(Top 137%)
24M24.00 mi1.00 mi7441-1016349-346349-3411200(Top 39%)7753(Top 48%)7753(Top 137%)
40K24.85 mi0.85 mi7526-856371-226371-2210518(Top 37%)7303(Top 45%)7303(Top 129%)
25.2M25.20 mi0.35 mi7675-1496449-786449-7816945(Top 60%)10310(Top 64%)10310(Top 183%)
Finish26.22 mi1.02 mi7920-2456578-1296578-12914411(Top 51%)9205(Top 57%)9205(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5194

Males

4807

M18-39

4807

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5111

Males

4763

M18-39

4763

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5194

Males

4807

M18-39

4807

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7010

Males

6212

M18-39

6212

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6505

Males

5845

M18-39

5845

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8561

Males

7083

M18-39

7083

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

8032

Males

6609

M18-39

6609

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14601

Males

9724

M18-39

9724

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13359

Males

9018

M18-39

9018

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

11074

Males

7885

M18-39

7885

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10997

Males

7742

M18-39

7742

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11200

Males

7753

M18-39

7753

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10518

Males

7303

M18-39

7303

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16945

Males

10310

M18-39

10310

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

14411

Males

9205

M18-39

9205

Passing Analysis

Category:
Athletes Passed
491
Passed By
4312
Net Change
-3821
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4099
5K → 10K29471-442#4099#4541
10K → 15K62229-167#4541#4708
15K → 20K27644-617#4708#5325
20K → Half971-62#5325#5387
Half → 25K31649-618#5387#6005
25K → 30K90418-328#6005#6333
30K → 20M23489-466#6333#6799
20M → 21M32335-303#6799#7102
21M → 35K27117-90#7102#7192
35K → 23M50198-148#7192#7340
23M → 24M41142-101#7340#7441
24M → 40K48133-85#7441#7526
40K → 25.2M7156-149#7526#7675
25.2M → Finish15260-245#7675#7920
TOTALS4914312-3821
📊

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