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BOSTON MARATHON 2025

Kevin O'Connor

Bib: 27896•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 (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:49
Rank: #26169
Start → 5K
31:49 | 10:14/mi
10K· 6.21 mi
1:02:49
Rank: #25675 (+494)
5K → 10K
31:00 | 9:59/mi
15K· 9.32 mi
1:33:05
Rank: #25248 (+427)
10K → 15K
30:16 | 9:45/mi
20K· 12.43 mi
2:04:12
Rank: #25003 (+245)
15K → 20K
31:07 | 10:01/mi
Half· 13.11 mi
2:10:41
Rank: #24922 (+81)
20K → Half
6:29 | 9:30/mi
25K· 15.53 mi
2:35:17
Rank: #24701 (+221)
Half → 25K
24:36 | 10:09/mi
30K· 18.64 mi
3:08:25
Rank: #24468 (+233)
25K → 30K
33:08 | 10:40/mi
20M
3:22:54
Rank: #24356 (+112)
30K → 20M
14:29 | 10:39/mi
21M
3:34:09
Rank: #24219 (+137)
20M → 21M
11:15 | 11:15/mi
35K· 21.75 mi
3:41:20
Rank: #24110 (+109)
21M → 35K
7:11 | 9:36/mi
23M
3:54:21
Rank: #23965 (+145)
35K → 23M
13:01 | 10:24/mi
24M
4:04:39
Rank: #23896 (+69)
23M → 24M
10:18 | 10:18/mi
40K· 24.85 mi
4:13:34
Rank: #23813 (+83)
24M → 40K
8:55 | 10:26/mi
25.2M
4:17:22
Rank: #23771 (+42)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
4:26:46
Rank: #23685 (+86)
25.2M → Finish
9:24 | 9:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:41
Pace9:58 /mi
2nd Half
Distance13.11 mi
Time2:16:05
Pace10:23 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5631:4910:1431:49
10:14
-
10K
6.21 mi12:20:561:02:4910:0731:00
9:59
-0:15
15K
9.32 mi12:51:121:33:059:5930:16
9:45
-0:14
20K
12.43 mi13:22:192:04:1210:0031:07
10:01
+0:16
Half
13.11 mi13:28:482:10:419:586:29
9:30
-0:31
25K
15.53 mi13:53:242:35:1710:0024:36
10:09
+0:39
30K
18.64 mi14:26:323:08:2510:0633:08
10:40
+0:31
20M
20.00 mi14:41:013:22:5410:0914:29
10:39
-0:01
21M
21.00 mi14:52:163:34:0910:1211:15
11:15
+0:36
35K
21.75 mi14:59:273:41:2010:117:11
9:36
-1:39
23M
23.00 mi15:12:283:54:2110:1113:01
10:24
+0:48
24M
24.00 mi15:22:464:04:3910:1210:18
10:18
-0:06
40K
24.85 mi15:31:414:13:3410:128:55
10:26
+0:08
25.2M
25.20 mi15:35:294:17:2210:133:48
11:01
+0:35
Finish
26.22 mi15:44:534:26:4610:119:24
9:13
-1:48

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

9:13 /mi

Average Pace

10:11 /mi

Slowest Pace

11:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

53:20

20% of race

Time at Steady Pace

2:30:46

57% of race

Time at Slower Pace

1:02:40

23% 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 mi11:49:5631:4910:1431:49
10:14
#26169
10K
6.21 mi12:20:561:02:4910:0731:00
9:59
#25675
15K
9.32 mi12:51:121:33:059:5930:16
9:45
#25248
20K
12.43 mi13:22:192:04:1210:0031:07
10:01
#25003
Half
13.11 mi13:28:482:10:419:586:29
9:30
#24922
25K
15.53 mi13:53:242:35:1710:0024:36
10:09
#24701
30K
18.64 mi14:26:323:08:2510:0633:08
10:40
#24468
20M
20.00 mi14:41:013:22:5410:0914:29
10:39
#24356
21M
21.00 mi14:52:163:34:0910:1211:15
11:15
#24219
35K
21.75 mi14:59:273:41:2010:117:11
9:36
#24110
23M
23.00 mi15:12:283:54:2110:1113:01
10:24
#23965
24M
24.00 mi15:22:464:04:3910:1210:18
10:18
#23896
40K
24.85 mi15:31:414:13:3410:128:55
10:26
#23813
25.2M
25.20 mi15:35:294:17:2210:133:48
11:01
#23771
Finish
26.22 mi15:44:534:26:4610:119:24
9:13
#23685
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi26169152471524724393(Top 86%)14434(Top 90%)14434(Top 876%)
10K6.21 mi3.10 mi25675+49415019+22815019+22825265(Top 89%)14820(Top 92%)14820(Top 899%)
15K9.32 mi3.11 mi25248+42714821+19814821+19824393(Top 86%)14434(Top 90%)14434(Top 876%)
20K12.43 mi3.11 mi25003+24514706+11514706+11524246(Top 85%)14332(Top 89%)14332(Top 870%)
Half13.11 mi0.68 mi24922+8114662+4414662+4423564(Top 83%)14041(Top 87%)14041(Top 852%)
25K15.53 mi2.42 mi24701+22114547+11514547+11523598(Top 83%)14006(Top 87%)14006(Top 850%)
30K18.64 mi3.11 mi24468+23314421+12614421+12623307(Top 82%)13751(Top 85%)13751(Top 834%)
20M20.00 mi1.36 mi24356+11214353+6814353+6822847(Top 80%)13449(Top 84%)13449(Top 816%)
21M21.00 mi1.00 mi24219+13714272+8114272+8122033(Top 78%)12995(Top 81%)12995(Top 789%)
35K21.75 mi0.75 mi24110+10914218+5414218+5420688(Top 73%)12300(Top 76%)12300(Top 746%)
23M23.00 mi1.25 mi23965+14514119+9914119+9921720(Top 76%)12741(Top 79%)12741(Top 773%)
24M24.00 mi1.00 mi23896+6914083+3614083+3622241(Top 78%)12928(Top 80%)12928(Top 784%)
40K24.85 mi0.85 mi23813+8314026+5714026+5721722(Top 76%)12620(Top 78%)12620(Top 766%)
25.2M25.20 mi0.35 mi23771+4214003+2314003+2320707(Top 73%)12154(Top 75%)12154(Top 738%)
Finish26.22 mi1.02 mi23685+8613948+5513948+5520054(Top 71%)11833(Top 73%)11833(Top 718%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24393

Males

14434

M55-59

14434

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25265

Males

14820

M55-59

14820

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24393

Males

14434

M55-59

14434

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24246

Males

14332

M55-59

14332

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23564

Males

14041

M55-59

14041

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23598

Males

14006

M55-59

14006

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23307

Males

13751

M55-59

13751

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22847

Males

13449

M55-59

13449

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22033

Males

12995

M55-59

12995

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

20688

Males

12300

M55-59

12300

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21720

Males

12741

M55-59

12741

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22241

Males

12928

M55-59

12928

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21722

Males

12620

M55-59

12620

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20707

Males

12154

M55-59

12154

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

20054

Males

11833

M55-59

11833

Passing Analysis

Category:
Athletes Passed
2673
Passed By
189
Net Change
+2484
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26169
5K → 10K52329+494#26169#25675
10K → 15K43912+427#25675#25248
15K → 20K27732+245#25248#25003
20K → Half843+81#25003#24922
Half → 25K23716+221#24922#24701
25K → 30K26330+233#24701#24468
30K → 20M13018+112#24468#24356
20M → 21M14710+137#24356#24219
21M → 35K1090+109#24219#24110
35K → 23M1516+145#24110#23965
23M → 24M8718+69#23965#23896
24M → 40K918+83#23896#23813
40K → 25.2M453+42#23813#23771
25.2M → Finish904+86#23771#23685
TOTALS2673189+2484
📊

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