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BOSTON MARATHON 2025

Craig Blythe

Bib: 7021•M

AB

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:29/mi
20:10
↑ 97↓ 3451.5%
10K· 6.21 mi
6:36/mi
40:39
↑ 79↓ 1380.4%
15K· 9.32 mi
6:34/mi
1:01:03
↑ 67↓ 78
20K· 12.43 mi
6:43/mi
1:21:54
↑ 106↓ 860.1%
Half· 13.11 mi
6:33/mi
1:26:22
↑ 19↓ 370.5%
25K· 15.53 mi
6:46/mi
1:42:47
↑ 66↓ 880.2%
30K· 18.64 mi
7:07/mi
2:04:55
↑ 181↓ 1480.2%
20M
7:13/mi
2:14:44
↑ 64↓ 500.2%
21M
7:45/mi
2:22:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:02/mi
2:27:45
↑ 17↓ 861.7%
23M
7:24/mi
2:37:01
↑ 23↓ 630.6%
24M
7:04/mi
2:44:05
↓ 821.3%
40K· 24.85 mi
7:22/mi
2:50:23
↓ 200.3%
25.2M
7:56/mi
2:53:07
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:00:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:22
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:33:47
Pace7:09 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5620:106:2920:10
6:29
-
10K
6.21 mi10:47:2540:396:3320:29
6:36
+0:07
15K
9.32 mi11:07:491:01:036:3320:24
6:34
-0:02
20K
12.43 mi11:28:401:21:546:3520:51
6:43
+0:09
Half
13.11 mi11:33:081:26:226:354:28
6:33
-0:10
25K
15.53 mi11:49:331:42:476:3716:25
6:46
+0:13
30K
18.64 mi12:11:412:04:556:4222:08
7:07
+0:21
20M
20.00 mi12:21:302:14:446:449:49
7:13
+0:06
21M
21.00 mi12:29:152:22:296:477:45
7:45
+0:32
35K
21.75 mi12:34:312:27:456:485:16
7:02
-0:43
23M
23.00 mi12:43:472:37:016:509:16
7:24
+0:22
24M
24.00 mi12:50:512:44:056:507:04
7:04
-0:20
40K
24.85 mi12:57:092:50:236:516:18
7:22
+0:18
25.2M
25.20 mi12:59:532:53:076:522:44
7:56
+0:34
Finish
26.22 mi13:06:553:00:096:537:02
6:54
-1:02

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

6:29 /mi

Average Pace

6:53 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:47

57% of race

Time at Steady Pace

51:19

28% of race

Time at Slower Pace

26:03

14% of race

Average Pace: 6:52 /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 mi10:26:5620:106:2920:10
6:29
#3763
10K
6.21 mi10:47:2540:396:3320:29
6:36
#4073
15K
9.32 mi11:07:491:01:036:3320:24
6:34
#4027
20K
12.43 mi11:28:401:21:546:3520:51
6:43
#4090
Half
13.11 mi11:33:081:26:226:354:28
6:33
#4069
25K
15.53 mi11:49:331:42:476:3716:25
6:46
#4117
30K
18.64 mi12:11:412:04:556:4222:08
7:07
#4325
20M
20.00 mi12:21:302:14:446:449:49
7:13
#4398
21M
21.00 mi12:29:152:22:296:477:45
7:45
#4488
35K
21.75 mi12:34:312:27:456:485:16
7:02
#4513
23M
23.00 mi12:43:472:37:016:509:16
7:24
#4603
24M
24.00 mi12:50:512:44:056:507:04
7:04
#4606
40K
24.85 mi12:57:092:50:236:516:18
7:22
#4659
25.2M
25.20 mi12:59:532:53:076:522:44
7:56
#4673
Finish
26.22 mi13:06:553:00:096:537:02
6:54
#4721
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3763356235623984(Top 14%)3754(Top 23%)3754(Top 67%)
10K6.21 mi3.10 mi4073-3103840-2783840-2784416(Top 16%)4141(Top 26%)4141(Top 73%)
15K9.32 mi3.11 mi4027+463796+443796+443984(Top 14%)3754(Top 23%)3754(Top 67%)
20K12.43 mi3.11 mi4090-633849-533849-534518(Top 16%)4205(Top 26%)4205(Top 75%)
Half13.11 mi0.68 mi4069+213831+183831+183985(Top 14%)3749(Top 23%)3749(Top 66%)
25K15.53 mi2.42 mi4117-483869-383869-384634(Top 16%)4271(Top 27%)4271(Top 76%)
30K18.64 mi3.11 mi4325-2084045-1764045-1765439(Top 19%)4886(Top 30%)4886(Top 87%)
20M20.00 mi1.36 mi4398-734100-554100-555301(Top 19%)4698(Top 29%)4698(Top 83%)
21M21.00 mi1.00 mi4488-904165-654165-655875(Top 21%)4975(Top 31%)4975(Top 88%)
35K21.75 mi0.75 mi4513-254182-174182-175573(Top 20%)4761(Top 30%)4761(Top 84%)
23M23.00 mi1.25 mi4603-904243-614243-616034(Top 21%)4979(Top 31%)4979(Top 88%)
24M24.00 mi1.00 mi4606-34240+34240+34989(Top 18%)4246(Top 26%)4246(Top 75%)
40K24.85 mi0.85 mi4659-534278-384278-385979(Top 21%)4825(Top 30%)4825(Top 86%)
25.2M25.20 mi0.35 mi4673-144285-74285-75488(Top 19%)4406(Top 27%)4406(Top 78%)
Finish26.22 mi1.02 mi4721-484321-364321-365067(Top 18%)4155(Top 26%)4155(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3984

Males

3754

M18-39

3754

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4416

Males

4141

M18-39

4141

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3984

Males

3754

M18-39

3754

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4518

Males

4205

M18-39

4205

20K→Half

12.4 - 13.1 mi

Top 14%
×2story building
+19ft-37ft

Overall

3985

Males

3749

M18-39

3749

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4634

Males

4271

M18-39

4271

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

5439

Males

4886

M18-39

4886

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5301

Males

4698

M18-39

4698

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5875

Males

4975

M18-39

4975

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5573

Males

4761

M18-39

4761

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

6034

Males

4979

M18-39

4979

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

4989

Males

4246

M18-39

4246

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5979

Males

4825

M18-39

4825

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5488

Males

4406

M18-39

4406

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

5067

Males

4155

M18-39

4155

Passing Analysis

Category:
Athletes Passed
758
Passed By
1716
Net Change
-958
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3763
5K → 10K46356-310#3763#4073
10K → 15K11771+46#4073#4027
15K → 20K79142-63#4027#4090
20K → Half309+21#4090#4069
Half → 25K74122-48#4069#4117
25K → 30K81289-208#4117#4325
30K → 20M49122-73#4325#4398
20M → 21M44134-90#4398#4488
21M → 35K4166-25#4488#4513
35K → 23M49139-90#4513#4603
23M → 24M6467-3#4603#4606
24M → 40K3891-53#4606#4659
40K → 25.2M2438-14#4659#4673
25.2M → Finish2270-48#4673#4721
TOTALS7581716-958
📊

Passing Visuals

Category:
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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