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BOSTON MARATHON 2025

David Black

Bib: 8430•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M60-64)
#0 / 1259
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:10
Rank: #6395
Start → 5K
21:10 | 6:49/mi
10K· 6.21 mi
42:09
Rank: #6125 (+270)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:03:11
Rank: #5982 (+143)
10K → 15K
21:02 | 6:46/mi
20K· 12.43 mi
1:24:32
Rank: #5958 (+24)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:29:10
Rank: #5965 (-7)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:47
Rank: #5797 (+168)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:07:16
Rank: #5386 (+411)
25K → 30K
21:29 | 6:55/mi
20M
2:16:39
Rank: #5205 (+181)
30K → 20M
9:23 | 6:54/mi
21M
2:24:01
Rank: #5074 (+131)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:29:06
Rank: #5018 (+56)
21M → 35K
5:05 | 6:48/mi
23M
2:37:49
Rank: #4886 (+132)
35K → 23M
8:43 | 6:58/mi
24M
2:44:40
Rank: #4807 (+79)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:50:41
Rank: #4760 (+47)
24M → 40K
6:01 | 7:02/mi
25.2M
2:53:19
Rank: #4743 (+17)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
3:00:06
Rank: #4710 (+33)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:10
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:30:56
Pace6:56 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:5521:106:4921:10
6:49
-
10K
6.21 mi10:50:5442:096:4720:59
6:45
-0:04
15K
9.32 mi11:11:561:03:116:4721:02
6:46
+0:01
20K
12.43 mi11:33:171:24:326:4821:21
6:52
+0:06
Half
13.11 mi11:37:551:29:106:484:38
6:47
-0:05
25K
15.53 mi11:54:321:45:476:4916:37
6:51
+0:04
30K
18.64 mi12:16:012:07:166:5021:29
6:55
+0:04
20M
20.00 mi12:25:242:16:396:509:23
6:54
-0:01
21M
21.00 mi12:32:462:24:016:517:22
7:22
+0:28
35K
21.75 mi12:37:512:29:066:515:05
6:48
-0:34
23M
23.00 mi12:46:342:37:496:528:43
6:58
+0:10
24M
24.00 mi12:53:252:44:406:526:51
6:51
-0:07
40K
24.85 mi12:59:262:50:416:526:01
7:02
+0:11
25.2M
25.20 mi13:02:042:53:196:532:38
7:38
+0:36
Finish
26.22 mi13:08:513:00:066:526:47
6:39
-0:59

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

6:39 /mi

Average Pace

6:52 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:06

94% of race

Time at Steady Pace

10:00

6% of race

Time at Slower Pace

0:00

0% 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 mi10:29:5521:106:4921:10
6:49
#6395
10K
6.21 mi10:50:5442:096:4720:59
6:45
#6125
15K
9.32 mi11:11:561:03:116:4721:02
6:46
#5982
20K
12.43 mi11:33:171:24:326:4821:21
6:52
#5958
Half
13.11 mi11:37:551:29:106:484:38
6:47
#5965
25K
15.53 mi11:54:321:45:476:4916:37
6:51
#5797
30K
18.64 mi12:16:012:07:166:5021:29
6:55
#5386
20M
20.00 mi12:25:242:16:396:509:23
6:54
#5205
21M
21.00 mi12:32:462:24:016:517:22
7:22
#5074
35K
21.75 mi12:37:512:29:066:515:05
6:48
#5018
23M
23.00 mi12:46:342:37:496:528:43
6:58
#4886
24M
24.00 mi12:53:252:44:406:526:51
6:51
#4807
40K
24.85 mi12:59:262:50:416:526:01
7:02
#4760
25.2M
25.20 mi13:02:042:53:196:532:38
7:38
#4743
Finish
26.22 mi13:08:513:00:066:526:47
6:39
#4710
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi6395582958295764(Top 20%)5253(Top 33%)5253(Top 417%)
10K6.21 mi3.10 mi6125+2705613+2165613+2165863(Top 21%)5364(Top 33%)5364(Top 426%)
15K9.32 mi3.11 mi5982+1435482+1315482+1315764(Top 20%)5253(Top 33%)5253(Top 417%)
20K12.43 mi3.11 mi5958+245450+325450+325938(Top 21%)5381(Top 33%)5381(Top 427%)
Half13.11 mi0.68 mi5965-75452-25452-25982(Top 21%)5403(Top 34%)5403(Top 429%)
25K15.53 mi2.42 mi5797+1685297+1555297+1555279(Top 19%)4826(Top 30%)4826(Top 383%)
30K18.64 mi3.11 mi5386+4114939+3584939+3584169(Top 15%)3832(Top 24%)3832(Top 304%)
20M20.00 mi1.36 mi5205+1814774+1654774+1653545(Top 12%)3267(Top 20%)3267(Top 259%)
21M21.00 mi1.00 mi5074+1314662+1124662+1123938(Top 14%)3573(Top 22%)3573(Top 284%)
35K21.75 mi0.75 mi5018+564609+534609+534060(Top 14%)3635(Top 23%)3635(Top 289%)
23M23.00 mi1.25 mi4886+1324488+1214488+1213532(Top 12%)3202(Top 20%)3202(Top 254%)
24M24.00 mi1.00 mi4807+794410+784410+783787(Top 13%)3361(Top 21%)3361(Top 267%)
40K24.85 mi0.85 mi4760+474366+444366+444103(Top 14%)3561(Top 22%)3561(Top 283%)
25.2M25.20 mi0.35 mi4743+174345+214345+213997(Top 14%)3413(Top 21%)3413(Top 271%)
Finish26.22 mi1.02 mi4710+334310+354310+353633(Top 13%)3159(Top 20%)3159(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5764

Males

5253

M60-64

5253

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5863

Males

5364

M60-64

5364

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5764

Males

5253

M60-64

5253

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5938

Males

5381

M60-64

5381

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5982

Males

5403

M60-64

5403

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5279

Males

4826

M60-64

4826

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4169

Males

3832

M60-64

3832

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3545

Males

3267

M60-64

3267

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3938

Males

3573

M60-64

3573

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

4060

Males

3635

M60-64

3635

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3532

Males

3202

M60-64

3202

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3787

Males

3361

M60-64

3361

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4103

Males

3561

M60-64

3561

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3997

Males

3413

M60-64

3413

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3633

Males

3159

M60-64

3159

Passing Analysis

Category:
Athletes Passed
2195
Passed By
510
Net Change
+1685
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6395
5K → 10K35686+270#6395#6125
10K → 15K20057+143#6125#5982
15K → 20K151127+24#5982#5958
20K → Half1724-7#5958#5965
Half → 25K20840+168#5965#5797
25K → 30K42413+411#5797#5386
30K → 20M1887+181#5386#5205
20M → 21M14817+131#5205#5074
21M → 35K8024+56#5074#5018
35K → 23M15422+132#5018#4886
23M → 24M10021+79#4886#4807
24M → 40K8134+47#4807#4760
40K → 25.2M3215+17#4760#4743
25.2M → Finish5623+33#4743#4710
TOTALS2195510+1685
📊

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