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BOSTON MARATHON 2025

Ian Sullivan

Bib: 21375•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:52
Rank: #18855
Start → 5K
25:52 | 8:20/mi
10K· 6.21 mi
51:52
Rank: #18898 (-43)
5K → 10K
26:00 | 8:22/mi
15K· 9.32 mi
1:18:27
Rank: #19127 (-229)
10K → 15K
26:35 | 8:33/mi
20K· 12.43 mi
1:46:10
Rank: #19549 (-422)
15K → 20K
27:43 | 8:55/mi
Half· 13.11 mi
1:51:50
Rank: #19460 (+89)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:13:21
Rank: #19416 (+44)
Half → 25K
21:31 | 8:52/mi
30K· 18.64 mi
2:41:09
Rank: #19009 (+407)
25K → 30K
27:48 | 8:57/mi
20M
2:53:15
Rank: #18810 (+199)
30K → 20M
12:06 | 8:54/mi
21M
3:03:27
Rank: #18818 (-8)
20M → 21M
10:12 | 10:12/mi
35K· 21.75 mi
3:09:52
Rank: #18706 (+112)
21M → 35K
6:25 | 8:35/mi
23M
3:20:52
Rank: #18474 (+232)
35K → 23M
11:00 | 8:47/mi
24M
3:29:30
Rank: #18313 (+161)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:37:09
Rank: #18232 (+81)
24M → 40K
7:39 | 8:57/mi
25.2M
3:40:28
Rank: #18186 (+46)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:49:09
Rank: #18116 (+70)
25.2M → Finish
8:41 | 8:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:50
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time1:57:19
Pace8:57 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5525:528:2025:52
8:20
-
10K
6.21 mi11:44:5551:528:2126:00
8:22
+0:02
15K
9.32 mi12:11:301:18:278:2526:35
8:33
+0:11
20K
12.43 mi12:39:131:46:108:3327:43
8:55
+0:22
Half
13.11 mi12:44:531:51:508:325:40
8:18
-0:37
25K
15.53 mi13:06:242:13:218:3521:31
8:52
+0:34
30K
18.64 mi13:34:122:41:098:3927:48
8:57
+0:05
20M
20.00 mi13:46:182:53:158:4012:06
8:54
-0:03
21M
21.00 mi13:56:303:03:278:4410:12
10:12
+1:18
35K
21.75 mi14:02:553:09:528:446:25
8:35
-1:37
23M
23.00 mi14:13:553:20:528:4411:00
8:47
+0:12
24M
24.00 mi14:22:333:29:308:448:38
8:38
-0:09
40K
24.85 mi14:30:123:37:098:447:39
8:57
+0:19
25.2M
25.20 mi14:33:313:40:288:453:19
9:37
+0:40
Finish
26.22 mi14:42:123:49:098:458:41
8:31
-1:06

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

8:18 /mi

Average Pace

8:45 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:13

29% of race

Time at Steady Pace

2:29:25

65% of race

Time at Slower Pace

13:31

6% of race

Average Pace: 8:44 /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 mi11:18:5525:528:2025:52
8:20
#18855
10K
6.21 mi11:44:5551:528:2126:00
8:22
#18898
15K
9.32 mi12:11:301:18:278:2526:35
8:33
#19127
20K
12.43 mi12:39:131:46:108:3327:43
8:55
#19549
Half
13.11 mi12:44:531:51:508:325:40
8:18
#19460
25K
15.53 mi13:06:242:13:218:3521:31
8:52
#19416
30K
18.64 mi13:34:122:41:098:3927:48
8:57
#19009
20M
20.00 mi13:46:182:53:158:4012:06
8:54
#18810
21M
21.00 mi13:56:303:03:278:4410:12
10:12
#18818
35K
21.75 mi14:02:553:09:528:446:25
8:35
#18706
23M
23.00 mi14:13:553:20:528:4411:00
8:47
#18474
24M
24.00 mi14:22:333:29:308:448:38
8:38
#18313
40K
24.85 mi14:30:123:37:098:447:39
8:57
#18232
25.2M
25.20 mi14:33:313:40:288:453:19
9:37
#18186
Finish
26.22 mi14:42:123:49:098:458:41
8:31
#18116
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18855119731197319655(Top 69%)12348(Top 77%)12348(Top 981%)
10K6.21 mi3.10 mi18898-4311996-2311996-2318984(Top 67%)12055(Top 75%)12055(Top 958%)
15K9.32 mi3.11 mi19127-22912097-10112097-10119655(Top 69%)12348(Top 77%)12348(Top 981%)
20K12.43 mi3.11 mi19549-42212277-18012277-18020571(Top 72%)12698(Top 79%)12698(Top 1009%)
Half13.11 mi0.68 mi19460+8912235+4212235+4217933(Top 63%)11603(Top 72%)11603(Top 922%)
25K15.53 mi2.42 mi19416+4412208+2712208+2719290(Top 68%)12096(Top 75%)12096(Top 961%)
30K18.64 mi3.11 mi19009+40711997+21111997+21117401(Top 61%)11105(Top 69%)11105(Top 882%)
20M20.00 mi1.36 mi18810+19911896+10111896+10116254(Top 57%)10471(Top 65%)10471(Top 832%)
21M21.00 mi1.00 mi18818-811871+2511871+2519004(Top 67%)11615(Top 72%)11615(Top 923%)
35K21.75 mi0.75 mi18706+11211800+7111800+7115933(Top 56%)10160(Top 63%)10160(Top 807%)
23M23.00 mi1.25 mi18474+23211676+12411676+12415030(Top 53%)9645(Top 60%)9645(Top 766%)
24M24.00 mi1.00 mi18313+16111572+10411572+10415348(Top 54%)9743(Top 60%)9743(Top 774%)
40K24.85 mi0.85 mi18232+8111510+6211510+6215997(Top 56%)9923(Top 62%)9923(Top 788%)
25.2M25.20 mi0.35 mi18186+4611475+3511475+3515165(Top 53%)9504(Top 59%)9504(Top 755%)
Finish26.22 mi1.02 mi18116+7011436+3911436+3916340(Top 58%)10089(Top 63%)10089(Top 801%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19655

Males

12348

M60-64

12348

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18984

Males

12055

M60-64

12055

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19655

Males

12348

M60-64

12348

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20571

Males

12698

M60-64

12698

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17933

Males

11603

M60-64

11603

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19290

Males

12096

M60-64

12096

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17401

Males

11105

M60-64

11105

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16254

Males

10471

M60-64

10471

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

19004

Males

11615

M60-64

11615

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

15933

Males

10160

M60-64

10160

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

15030

Males

9645

M60-64

9645

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15348

Males

9743

M60-64

9743

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15997

Males

9923

M60-64

9923

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15165

Males

9504

M60-64

9504

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16340

Males

10089

M60-64

10089

Passing Analysis

Category:
Athletes Passed
2294
Passed By
1555
Net Change
+739
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18855
5K → 10K236279-43#18855#18898
10K → 15K128357-229#18898#19127
15K → 20K84506-422#19127#19549
20K → Half923+89#19549#19460
Half → 25K186142+44#19460#19416
25K → 30K45649+407#19416#19009
30K → 20M21718+199#19009#18810
20M → 21M106114-8#18810#18818
21M → 35K1153+112#18818#18706
35K → 23M2386+232#18706#18474
23M → 24M17110+161#18474#18313
24M → 40K11029+81#18313#18232
40K → 25.2M537+46#18232#18186
25.2M → Finish10232+70#18186#18116
TOTALS22941555+739
📊

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