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BOSTON MARATHON 2025

Daniel Sullivan

Bib: 27510•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:39/mi
26:54
↑ 97↓ 3451.5%
10K· 6.21 mi
8:42/mi
53:56
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:21:52
↑ 67↓ 78
20K· 12.43 mi
9:10/mi
1:50:21
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
1:56:42
↑ 19↓ 370.5%
25K· 15.53 mi
10:15/mi
2:21:33
↑ 66↓ 880.2%
30K· 18.64 mi
10:54/mi
2:55:25
↑ 181↓ 1480.2%
20M
11:35/mi
3:11:09
↑ 64↓ 500.2%
21M
13:19/mi
3:24:28
↑ 106↓ 241.6%
35K· 21.75 mi
11:15/mi
3:32:53
↑ 17↓ 861.7%
23M
12:26/mi
3:48:27
↑ 23↓ 630.6%
24M
11:44/mi
4:00:11
↓ 821.3%
40K· 24.85 mi
12:37/mi
4:10:58
↓ 200.3%
25.2M
12:43/mi
4:15:21
↑ 13↓ 160.2%
Finish· 26.22 mi
11:00/mi
4:26:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:42
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:29:52
Pace11:26 /mi
📊Positive Split: 28.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:5326:548:3926:54
8:39
-
10K
6.21 mi12:09:5553:568:4127:02
8:42
+0:03
15K
9.32 mi12:37:511:21:528:4727:56
8:59
+0:17
20K
12.43 mi13:06:201:50:218:5328:29
9:10
+0:11
Half
13.11 mi13:12:411:56:428:546:21
9:18
+0:08
25K
15.53 mi13:37:322:21:339:0724:51
10:15
+0:57
30K
18.64 mi14:11:242:55:259:2533:52
10:54
+0:39
20M
20.00 mi14:27:083:11:099:3315:44
11:35
+0:41
21M
21.00 mi14:40:273:24:289:4413:19
13:19
+1:44
35K
21.75 mi14:48:523:32:539:478:25
11:15
-2:04
23M
23.00 mi15:04:263:48:279:5615:34
12:26
+1:11
24M
24.00 mi15:16:104:00:1110:0011:44
11:44
-0:42
40K
24.85 mi15:26:574:10:5810:0610:47
12:37
+0:53
25.2M
25.20 mi15:31:204:15:2110:084:23
12:43
+0:06
Finish
26.22 mi15:42:334:26:3410:1011:13
11:00
-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

8:39 /mi

Average Pace

10:10 /mi

Slowest Pace

13:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:42

44% of race

Time at Steady Pace

1:45:49

40% of race

Time at Slower Pace

44:03

17% of race

Average Pace: 10:10 /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 mi11:42:5326:548:3926:54
8:39
#20792
10K
6.21 mi12:09:5553:568:4127:02
8:42
#20805
15K
9.32 mi12:37:511:21:528:4727:56
8:59
#21165
20K
12.43 mi13:06:201:50:218:5328:29
9:10
#21325
Half
13.11 mi13:12:411:56:428:546:21
9:18
#21443
25K
15.53 mi13:37:322:21:339:0724:51
10:15
#22050
30K
18.64 mi14:11:242:55:259:2533:52
10:54
#22525
20M
20.00 mi14:27:083:11:099:3315:44
11:35
#22743
21M
21.00 mi14:40:273:24:289:4413:19
13:19
#22969
35K
21.75 mi14:48:523:32:539:478:25
11:15
#23046
23M
23.00 mi15:04:263:48:279:5615:34
12:26
#23287
24M
24.00 mi15:16:104:00:1110:0011:44
11:44
#23409
40K
24.85 mi15:26:574:10:5810:0610:47
12:37
#23570
25.2M
25.20 mi15:31:204:15:2110:084:23
12:43
#23589
Finish
26.22 mi15:42:334:26:3410:1011:13
11:00
#23653
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20792127721277221986(Top 77%)13385(Top 83%)13385(Top 561%)
10K6.21 mi3.10 mi20805-1312805-3312805-3320874(Top 73%)12866(Top 80%)12866(Top 539%)
15K9.32 mi3.11 mi21165-36012979-17412979-17421986(Top 77%)13385(Top 83%)13385(Top 561%)
20K12.43 mi3.11 mi21325-16013053-7413053-7421772(Top 77%)13247(Top 82%)13247(Top 555%)
Half13.11 mi0.68 mi21443-11813103-5013103-5022972(Top 81%)13780(Top 86%)13780(Top 578%)
25K15.53 mi2.42 mi22050-60713361-25813361-25823820(Top 84%)14111(Top 88%)14111(Top 591%)
30K18.64 mi3.11 mi22525-47513541-18013541-18023824(Top 84%)13989(Top 87%)13989(Top 586%)
20M20.00 mi1.36 mi22743-21813613-7213613-7224674(Top 87%)14306(Top 89%)14306(Top 600%)
21M21.00 mi1.00 mi22969-22613698-8513698-8525458(Top 90%)14603(Top 91%)14603(Top 612%)
35K21.75 mi0.75 mi23046-7713724-2613724-2624689(Top 87%)14206(Top 88%)14206(Top 595%)
23M23.00 mi1.25 mi23287-24113809-8513809-8525711(Top 91%)14685(Top 91%)14685(Top 615%)
24M24.00 mi1.00 mi23409-12213856-4713856-4725297(Top 89%)14458(Top 90%)14458(Top 606%)
40K24.85 mi0.85 mi23570-16113906-5013906-5025809(Top 91%)14696(Top 91%)14696(Top 616%)
25.2M25.20 mi0.35 mi23589-1913908-213908-224575(Top 87%)14050(Top 87%)14050(Top 589%)
Finish26.22 mi1.02 mi23653-6413925-1713925-1725377(Top 89%)14468(Top 90%)14468(Top 606%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21986

Males

13385

M45-49

13385

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20874

Males

12866

M45-49

12866

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21986

Males

13385

M45-49

13385

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21772

Males

13247

M45-49

13247

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22972

Males

13780

M45-49

13780

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23820

Males

14111

M45-49

14111

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23824

Males

13989

M45-49

13989

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24674

Males

14306

M45-49

14306

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

25458

Males

14603

M45-49

14603

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24689

Males

14206

M45-49

14206

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

25711

Males

14685

M45-49

14685

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25297

Males

14458

M45-49

14458

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25809

Males

14696

M45-49

14696

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24575

Males

14050

M45-49

14050

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25377

Males

14468

M45-49

14468

Passing Analysis

Category:
Athletes Passed
803
Passed By
3664
Net Change
-2861
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20792
5K → 10K276289-13#20792#20805
10K → 15K90450-360#20805#21165
15K → 20K153313-160#21165#21325
20K → Half7125-118#21325#21443
Half → 25K32639-607#21443#22050
25K → 30K75550-475#22050#22525
30K → 20M31249-218#22525#22743
20M → 21M21247-226#22743#22969
21M → 35K23100-77#22969#23046
35K → 23M24265-241#23046#23287
23M → 24M20142-122#23287#23409
24M → 40K10171-161#23409#23570
40K → 25.2M1433-19#23570#23589
25.2M → Finish2791-64#23589#23653
TOTALS8033664-2861
📊

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