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BOSTON MARATHON 2025

Mark Oconnor

Bib: 3240•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Masters (Masters Men)
#0 / 10463
Top 10%
Division (M50-54)
#0 / 1996
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:05
Rank: #3563
Start → 5K
20:05 | 6:28/mi
10K· 6.21 mi
40:33
Rank: #3957 (-394)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:14
Rank: #4168 (-211)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:22:17
Rank: #4336 (-168)
15K → 20K
21:03 | 6:47/mi
Half· 13.11 mi
1:26:55
Rank: #4406 (-70)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:43:26
Rank: #4442 (-36)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:05:05
Rank: #4391 (+51)
25K → 30K
21:39 | 6:58/mi
20M
2:14:32
Rank: #4313 (+78)
30K → 20M
9:27 | 6:57/mi
21M
2:21:55
Rank: #4255 (+58)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:27:02
Rank: #4250 (+5)
21M → 35K
5:07 | 6:50/mi
23M
2:35:46
Rank: #4176 (+74)
35K → 23M
8:44 | 6:59/mi
24M
2:42:42
Rank: #4145 (+31)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:48:46
Rank: #4140 (+5)
24M → 40K
6:04 | 7:06/mi
25.2M
2:51:24
Rank: #4141 (-1)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:58:27
Rank: #4161 (-20)
25.2M → Finish
7:03 | 6:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:55
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:31:32
Pace6:59 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5320:056:2820:05
6:28
-
10K
6.21 mi10:42:2140:336:3220:28
6:35
+0:07
15K
9.32 mi11:03:021:01:146:3420:41
6:39
+0:04
20K
12.43 mi11:24:051:22:176:3721:03
6:47
+0:08
Half
13.11 mi11:28:431:26:556:384:38
6:47
0:00
25K
15.53 mi11:45:141:43:266:4016:31
6:49
+0:02
30K
18.64 mi12:06:532:05:056:4321:39
6:58
+0:09
20M
20.00 mi12:16:202:14:326:449:27
6:57
-0:01
21M
21.00 mi12:23:432:21:556:457:23
7:23
+0:26
35K
21.75 mi12:28:502:27:026:465:07
6:50
-0:33
23M
23.00 mi12:37:342:35:466:468:44
6:59
+0:09
24M
24.00 mi12:44:302:42:426:476:56
6:56
-0:03
40K
24.85 mi12:50:342:48:466:476:04
7:06
+0:10
25.2M
25.20 mi12:53:122:51:246:482:38
7:38
+0:32
Finish
26.22 mi13:00:152:58:276:497:03
6:55
-0:43

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

6:28 /mi

Average Pace

6:49 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:26

94% of race

Time at Steady Pace

7:23

4% of race

Time at Slower Pace

2:38

1% of race

Average Pace: 6:48 /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 mi10:21:5320:056:2820:05
6:28
#3563
10K
6.21 mi10:42:2140:336:3220:28
6:35
#3957
15K
9.32 mi11:03:021:01:146:3420:41
6:39
#4168
20K
12.43 mi11:24:051:22:176:3721:03
6:47
#4336
Half
13.11 mi11:28:431:26:556:384:38
6:47
#4406
25K
15.53 mi11:45:141:43:266:4016:31
6:49
#4442
30K
18.64 mi12:06:532:05:056:4321:39
6:58
#4391
20M
20.00 mi12:16:202:14:326:449:27
6:57
#4313
21M
21.00 mi12:23:432:21:556:457:23
7:23
#4255
35K
21.75 mi12:28:502:27:026:465:07
6:50
#4250
23M
23.00 mi12:37:342:35:466:468:44
6:59
#4176
24M
24.00 mi12:44:302:42:426:476:56
6:56
#4145
40K
24.85 mi12:50:342:48:466:476:04
7:06
#4140
25.2M
25.20 mi12:53:122:51:246:482:38
7:38
#4141
Finish
26.22 mi13:00:152:58:276:497:03
6:55
#4161
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3563338433844701(Top 17%)4394(Top 27%)4394(Top 220%)
10K6.21 mi3.10 mi3957-3943741-3573741-3574360(Top 15%)4093(Top 25%)4093(Top 205%)
15K9.32 mi3.11 mi4168-2113925-1843925-1844701(Top 17%)4394(Top 27%)4394(Top 220%)
20K12.43 mi3.11 mi4336-1684074-1494074-1495040(Top 18%)4648(Top 29%)4648(Top 233%)
Half13.11 mi0.68 mi4406-704135-614135-615971(Top 21%)5392(Top 33%)5392(Top 270%)
25K15.53 mi2.42 mi4442-364159-244159-244940(Top 17%)4534(Top 28%)4534(Top 227%)
30K18.64 mi3.11 mi4391+514103+564103+564496(Top 16%)4108(Top 26%)4108(Top 206%)
20M20.00 mi1.36 mi4313+784028+754028+753819(Top 13%)3512(Top 22%)3512(Top 176%)
21M21.00 mi1.00 mi4255+583962+663962+664007(Top 14%)3630(Top 23%)3630(Top 182%)
35K21.75 mi0.75 mi4250+53954+83954+84312(Top 15%)3841(Top 24%)3841(Top 192%)
23M23.00 mi1.25 mi4176+743878+763878+763598(Top 13%)3254(Top 20%)3254(Top 163%)
24M24.00 mi1.00 mi4145+313845+333845+334239(Top 15%)3720(Top 23%)3720(Top 186%)
40K24.85 mi0.85 mi4140+53825+203825+204414(Top 16%)3782(Top 23%)3782(Top 189%)
25.2M25.20 mi0.35 mi4141-13822+33822+33988(Top 14%)3404(Top 21%)3404(Top 171%)
Finish26.22 mi1.02 mi4161-203835-133835-135179(Top 18%)4227(Top 26%)4227(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4701

Males

4394

M50-54

4394

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4360

Males

4093

M50-54

4093

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4701

Males

4394

M50-54

4394

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5040

Males

4648

M50-54

4648

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5971

Males

5392

M50-54

5392

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4940

Males

4534

M50-54

4534

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4496

Males

4108

M50-54

4108

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3819

Males

3512

M50-54

3512

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

4007

Males

3630

M50-54

3630

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4312

Males

3841

M50-54

3841

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3598

Males

3254

M50-54

3254

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4239

Males

3720

M50-54

3720

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4414

Males

3782

M50-54

3782

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3988

Males

3404

M50-54

3404

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5179

Males

4227

M50-54

4227

Passing Analysis

Category:
Athletes Passed
901
Passed By
1499
Net Change
-598
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3563
5K → 10K25419-394#3563#3957
10K → 15K36247-211#3957#4168
15K → 20K52220-168#4168#4336
20K → Half474-70#4336#4406
Half → 25K89125-36#4406#4442
25K → 30K170119+51#4442#4391
30K → 20M11032+78#4391#4313
20M → 21M9133+58#4313#4255
21M → 35K4439+5#4255#4250
35K → 23M10733+74#4250#4176
23M → 24M6332+31#4176#4145
24M → 40K4742+5#4145#4140
40K → 25.2M2223-1#4140#4141
25.2M → Finish4161-20#4141#4161
TOTALS9011499-598
📊

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