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BOSTON MARATHON 2025

Stephen Kilburn

Bib: 16680•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 48%
Division (M60-64)
#0 / 1259
Top 16%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:03
Rank: #11509
Start → 5K
23:03 | 7:25/mi
10K· 6.21 mi
46:38
Rank: #12170 (-661)
5K → 10K
23:35 | 7:35/mi
15K· 9.32 mi
1:10:21
Rank: #12405 (-235)
10K → 15K
23:43 | 7:38/mi
20K· 12.43 mi
1:34:35
Rank: #12580 (-175)
15K → 20K
24:14 | 7:48/mi
Half· 13.11 mi
1:39:46
Rank: #12574 (+6)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:58:49
Rank: #12581 (-7)
Half → 25K
19:03 | 7:51/mi
30K· 18.64 mi
2:23:37
Rank: #12311 (+270)
25K → 30K
24:48 | 7:59/mi
20M
2:34:33
Rank: #12124 (+187)
30K → 20M
10:56 | 8:03/mi
21M
2:43:42
Rank: #12265 (-141)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
2:50:04
Rank: #12380 (-115)
21M → 35K
6:22 | 8:31/mi
23M
3:00:45
Rank: #12413 (-33)
35K → 23M
10:41 | 8:32/mi
24M
3:09:07
Rank: #12478 (-65)
23M → 24M
8:22 | 8:22/mi
40K· 24.85 mi
3:16:25
Rank: #12498 (-20)
24M → 40K
7:18 | 8:32/mi
25.2M
3:19:46
Rank: #12567 (-69)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:28:40
Rank: #12804 (-237)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:46
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:48:54
Pace8:18 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4923:037:2523:03
7:25
-
10K
6.21 mi11:20:2446:387:3023:35
7:35
+0:10
15K
9.32 mi11:44:071:10:217:3323:43
7:38
+0:03
20K
12.43 mi12:08:211:34:357:3724:14
7:48
+0:10
Half
13.11 mi12:13:321:39:467:375:11
7:36
-0:12
25K
15.53 mi12:32:351:58:497:3919:03
7:51
+0:15
30K
18.64 mi12:57:232:23:377:4224:48
7:59
+0:08
20M
20.00 mi13:08:192:34:337:4410:56
8:03
+0:04
21M
21.00 mi13:17:282:43:427:489:09
9:09
+1:06
35K
21.75 mi13:23:502:50:047:496:22
8:31
-0:38
23M
23.00 mi13:34:313:00:457:5210:41
8:32
+0:01
24M
24.00 mi13:42:533:09:077:538:22
8:22
-0:10
40K
24.85 mi13:50:113:16:257:547:18
8:32
+0:10
25.2M
25.20 mi13:53:323:19:467:563:21
9:43
+1:11
Finish
26.22 mi14:02:263:28:407:588:54
8:44
-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

7:25 /mi

Average Pace

7:58 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:32

36% of race

Time at Steady Pace

1:19:01

38% of race

Time at Slower Pace

54:07

26% of race

Average Pace: 7:57 /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 mi10:56:4923:037:2523:03
7:25
#11509
10K
6.21 mi11:20:2446:387:3023:35
7:35
#12170
15K
9.32 mi11:44:071:10:217:3323:43
7:38
#12405
20K
12.43 mi12:08:211:34:357:3724:14
7:48
#12580
Half
13.11 mi12:13:321:39:467:375:11
7:36
#12574
25K
15.53 mi12:32:351:58:497:3919:03
7:51
#12581
30K
18.64 mi12:57:232:23:377:4224:48
7:59
#12311
20M
20.00 mi13:08:192:34:337:4410:56
8:03
#12124
21M
21.00 mi13:17:282:43:427:489:09
9:09
#12265
35K
21.75 mi13:23:502:50:047:496:22
8:31
#12380
23M
23.00 mi13:34:313:00:457:5210:41
8:32
#12413
24M
24.00 mi13:42:533:09:077:538:22
8:22
#12478
40K
24.85 mi13:50:113:16:257:547:18
8:32
#12498
25.2M
25.20 mi13:53:323:19:467:563:21
9:43
#12567
Finish
26.22 mi14:02:263:28:407:588:54
8:44
#12804
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi115098953895312905(Top 45%)9471(Top 59%)9471(Top 752%)
10K6.21 mi3.10 mi12170-6619241-2889241-28812919(Top 45%)9557(Top 59%)9557(Top 759%)
15K9.32 mi3.11 mi12405-2359317-769317-7612905(Top 45%)9471(Top 59%)9471(Top 752%)
20K12.43 mi3.11 mi12580-1759354-379354-3713259(Top 47%)9534(Top 59%)9534(Top 757%)
Half13.11 mi0.68 mi12574+69344+109344+1012513(Top 44%)9243(Top 57%)9243(Top 734%)
25K15.53 mi2.42 mi12581-79312+329312+3212796(Top 45%)9199(Top 57%)9199(Top 731%)
30K18.64 mi3.11 mi12311+2709118+1949118+19411248(Top 40%)8312(Top 52%)8312(Top 660%)
20M20.00 mi1.36 mi12124+1878996+1228996+12210742(Top 38%)7919(Top 49%)7919(Top 629%)
21M21.00 mi1.00 mi12265-1419021-259021-2514326(Top 50%)9481(Top 59%)9481(Top 753%)
35K21.75 mi0.75 mi12380-1159046-259046-2515489(Top 55%)9920(Top 62%)9920(Top 788%)
23M23.00 mi1.25 mi12413-339023+239023+2313502(Top 48%)8938(Top 55%)8938(Top 710%)
24M24.00 mi1.00 mi12478-659038-159038-1513636(Top 48%)8963(Top 56%)8963(Top 712%)
40K24.85 mi0.85 mi12498-209011+279011+2713650(Top 48%)8831(Top 55%)8831(Top 701%)
25.2M25.20 mi0.35 mi12567-699028-179028-1715609(Top 55%)9675(Top 60%)9675(Top 768%)
Finish26.22 mi1.02 mi12804-2379116-889116-8817644(Top 62%)10697(Top 66%)10697(Top 850%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12905

Males

9471

M60-64

9471

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12919

Males

9557

M60-64

9557

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12905

Males

9471

M60-64

9471

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

13259

Males

9534

M60-64

9534

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

12513

Males

9243

M60-64

9243

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12796

Males

9199

M60-64

9199

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

11248

Males

8312

M60-64

8312

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10742

Males

7919

M60-64

7919

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14326

Males

9481

M60-64

9481

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15489

Males

9920

M60-64

9920

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13502

Males

8938

M60-64

8938

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

13636

Males

8963

M60-64

8963

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13650

Males

8831

M60-64

8831

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15609

Males

9675

M60-64

9675

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17644

Males

10697

M60-64

10697

Passing Analysis

Category:
Athletes Passed
1468
Passed By
2763
Net Change
-1295
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11509
5K → 10K66727-661#11509#12170
10K → 15K112347-235#12170#12405
15K → 20K139314-175#12405#12580
20K → Half3428+6#12580#12574
Half → 25K152159-7#12574#12581
25K → 30K372102+270#12581#12311
30K → 20M21730+187#12311#12124
20M → 21M66207-141#12124#12265
21M → 35K42157-115#12265#12380
35K → 23M104137-33#12380#12413
23M → 24M52117-65#12413#12478
24M → 40K6888-20#12478#12498
40K → 25.2M2291-69#12498#12567
25.2M → Finish22259-237#12567#12804
TOTALS14682763-1295
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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