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BOSTON MARATHON 2025

Derk Cullinan

Bib: 8356•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 24%
Division (M50-54)
#0 / 1996
Top 21%
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
6:42/mi
20:49
↑ 97↓ 3451.5%
10K· 6.21 mi
6:53/mi
42:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:04/mi
1:04:08
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:26:30
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:31:25
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:49:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:12:10
↑ 181↓ 1480.2%
20M
7:35/mi
2:22:28
↑ 64↓ 500.2%
21M
8:03/mi
2:30:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:36:05
↑ 17↓ 861.7%
23M
7:38/mi
2:45:39
↑ 23↓ 630.6%
24M
7:35/mi
2:53:14
↓ 821.3%
40K· 24.85 mi
7:40/mi
2:59:47
↓ 200.3%
25.2M
8:22/mi
3:02:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:22/mi
3:10:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:25
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:38:45
Pace7:32 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:2720:496:4220:49
6:42
-
10K
6.21 mi10:49:5042:126:4721:23
6:53
+0:11
15K
9.32 mi11:11:461:04:086:5321:56
7:04
+0:11
20K
12.43 mi11:34:081:26:306:5822:22
7:12
+0:08
Half
13.11 mi11:39:031:31:256:584:55
7:12
0:00
25K
15.53 mi11:56:401:49:027:0117:37
7:16
+0:04
30K
18.64 mi12:19:482:12:107:0523:08
7:27
+0:11
20M
20.00 mi12:30:062:22:287:0710:18
7:35
+0:08
21M
21.00 mi12:38:092:30:317:108:03
8:03
+0:28
35K
21.75 mi12:43:432:36:057:115:34
7:26
-0:37
23M
23.00 mi12:53:172:45:397:129:34
7:38
+0:12
24M
24.00 mi13:00:522:53:147:137:35
7:35
-0:03
40K
24.85 mi13:07:252:59:477:146:33
7:40
+0:05
25.2M
25.20 mi13:10:183:02:407:152:53
8:22
+0:42
Finish
26.22 mi13:17:483:10:107:157:30
7:22
-1:00

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

6:42 /mi

Average Pace

7:15 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:25

48% of race

Time at Steady Pace

1:21:16

43% of race

Time at Slower Pace

17:29

9% of race

Average Pace: 7:15 /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 mi10:28:2720:496:4220:49
6:42
#5445
10K
6.21 mi10:49:5042:126:4721:23
6:53
#6221
15K
9.32 mi11:11:461:04:086:5321:56
7:04
#6920
20K
12.43 mi11:34:081:26:306:5822:22
7:12
#7238
Half
13.11 mi11:39:031:31:256:584:55
7:12
#7312
25K
15.53 mi11:56:401:49:027:0117:37
7:16
#7381
30K
18.64 mi12:19:482:12:107:0523:08
7:27
#7280
20M
20.00 mi12:30:062:22:287:0710:18
7:35
#7209
21M
21.00 mi12:38:092:30:317:108:03
8:03
#7182
35K
21.75 mi12:43:432:36:057:115:34
7:26
#7169
23M
23.00 mi12:53:172:45:397:129:34
7:38
#7119
24M
24.00 mi13:00:522:53:147:137:35
7:35
#7123
40K
24.85 mi13:07:252:59:477:146:33
7:40
#7110
25.2M
25.20 mi13:10:183:02:407:152:53
8:22
#7099
Finish
26.22 mi13:17:483:10:107:157:30
7:22
#7109
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5445505550558018(Top 28%)6948(Top 43%)6948(Top 348%)
10K6.21 mi3.10 mi6221-7765697-6425697-6427100(Top 25%)6352(Top 39%)6352(Top 318%)
15K9.32 mi3.11 mi6920-6996217-5206217-5208018(Top 28%)6948(Top 43%)6948(Top 348%)
20K12.43 mi3.11 mi7238-3186444-2276444-2278183(Top 29%)6976(Top 43%)6976(Top 349%)
Half13.11 mi0.68 mi7312-746493-496493-499047(Top 32%)7479(Top 46%)7479(Top 375%)
25K15.53 mi2.42 mi7381-696530-376530-378087(Top 28%)6812(Top 42%)6812(Top 341%)
30K18.64 mi3.11 mi7280+1016407+1236407+1237336(Top 26%)6174(Top 38%)6174(Top 309%)
20M20.00 mi1.36 mi7209+716327+806327+807505(Top 26%)6134(Top 38%)6134(Top 307%)
21M21.00 mi1.00 mi7182+276274+536274+537605(Top 27%)6023(Top 37%)6023(Top 302%)
35K21.75 mi0.75 mi7169+136249+256249+258153(Top 29%)6376(Top 40%)6376(Top 319%)
23M23.00 mi1.25 mi7119+506174+756174+757490(Top 26%)5859(Top 36%)5859(Top 294%)
24M24.00 mi1.00 mi7123-46145+296145+298255(Top 29%)6245(Top 39%)6245(Top 313%)
40K24.85 mi0.85 mi7110+136108+376108+377792(Top 27%)5867(Top 36%)5867(Top 294%)
25.2M25.20 mi0.35 mi7099+116088+206088+207884(Top 28%)5825(Top 36%)5825(Top 292%)
Finish26.22 mi1.02 mi7109-106069+196069+198152(Top 29%)5985(Top 37%)5985(Top 300%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

8018

Males

6948

M50-54

6948

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

7100

Males

6352

M50-54

6352

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

8018

Males

6948

M50-54

6948

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8183

Males

6976

M50-54

6976

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

9047

Males

7479

M50-54

7479

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

8087

Males

6812

M50-54

6812

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7336

Males

6174

M50-54

6174

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7505

Males

6134

M50-54

6134

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7605

Males

6023

M50-54

6023

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8153

Males

6376

M50-54

6376

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7490

Males

5859

M50-54

5859

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8255

Males

6245

M50-54

6245

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7792

Males

5867

M50-54

5867

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7884

Males

5825

M50-54

5825

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8152

Males

5985

M50-54

5985

Passing Analysis

Category:
Athletes Passed
1060
Passed By
2724
Net Change
-1664
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5445
5K → 10K26802-776#5445#6221
10K → 15K28727-699#6221#6920
15K → 20K61379-318#6920#7238
20K → Half478-74#7238#7312
Half → 25K94163-69#7312#7381
25K → 30K221120+101#7381#7280
30K → 20M12453+71#7280#7209
20M → 21M10578+27#7209#7182
21M → 35K5239+13#7182#7169
35K → 23M11565+50#7169#7119
23M → 24M6468-4#7119#7123
24M → 40K6754+13#7123#7110
40K → 25.2M3221+11#7110#7099
25.2M → Finish6777-10#7099#7109
TOTALS10602724-1664
📊

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