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BOSTON MARATHON 2025

Michael O'Connor

MA

Bib: 8793 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M40-44)
#0 / 2247
Top 33%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:44/mi
20:56
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:40/mi
41:40
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:41/mi
1:02:25
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:43/mi
1:23:18
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:37/mi
1:27:49
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:46/mi
1:44:13
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:58/mi
2:05:51
↑ 181↓ 1480.2%
138 ft elev
20M
7:18/mi
2:15:46
↑ 64↓ 500.2%
148 ft elev
21M
7:46/mi
2:23:32
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:56/mi
2:28:43
↑ 17↓ 861.7%
156 ft elev
23M
7:15/mi
2:37:48
↑ 23↓ 630.6%
116 ft elev
24M
7:02/mi
2:44:50
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:12/mi
2:50:59
↓ 200.3%
20 ft elev
25.2M
7:35/mi
2:53:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:32/mi
3:00:15
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:27:496:42 /mi⚡ faster
2nd Half
1:32:267:03 /mi+5.3%
Positive split — 5.3% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
20:566:443.11 mi20:56
6:44
-
10K
41:406:423.10 mi20:44
6:40
-0:04
15K
1:02:256:423.11 mi20:45
6:41
+0:01
20K
1:23:186:423.11 mi20:53
6:43
+0:02
Half(13.11 mi)
1:27:496:420.68 mi4:31
6:37
-0:06
25K
1:44:136:432.42 mi16:24
6:46
+0:09
30K
2:05:516:453.11 mi21:38
6:58
+0:12
20M
2:15:466:471.36 mi9:55
7:18
+0:20
21M
2:23:326:501.00 mi7:46
7:46
+0:28
35K
2:28:436:500.75 mi5:11
6:56
-0:50
23M
2:37:486:521.25 mi9:05
7:15
+0:19
24M
2:44:506:521.00 mi7:02
7:02
-0:13
40K
2:50:596:530.85 mi6:09
7:12
+0:10
25.2M
2:53:366:530.35 mi2:37
7:35
+0:23
Finish(26.22 mi)
3:00:156:531.02 mi6:39
6:32
-1:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:32 /mi

Average Pace

6:53 /mi

Slowest Pace

7:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:24:43

80% of race

Time at Steady Pace

27:46

15% of race

Time at Slower Pace

7:46

4% of race

Average Pace: 6:52 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi576453165316486945404540
10K3.10 mi5412+3525011+3055011+305508447364736
15K3.11 mi5223+1894852+1594852+159486945404540
20K3.11 mi5016+2074669+1834669+183460842814281
Half(13.11 mi)0.68 mi4987+294639+304639+30454442374237
25K2.42 mi4873+1144529+1104529+110458842334233
30K3.11 mi4756+1174406+1234406+123446640844084
20M1.36 mi4844-884484-784484-78573950005000
21M1.00 mi4891-474510-264510-26596750385038
35K0.75 mi4872+194488+224488+22487942914291
23M1.25 mi4881-94484+44484+4518144324432
24M1.00 mi4869+124460+244460+24479741114111
40K0.85 mi4866+34455+54455+5497841884188
25.2M0.35 mi4829+374419+364419+36378632683268
Finish(26.22 mi)1.02 mi4738+914334+854334+85294526262626

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4869

Males

4540

M40-44

4540

5K→10K

3.1 - 6.2 mi

Top 18%
×5story building
+79ft-138ft

Overall

5084

Males

4736

M40-44

4736

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4869

Males

4540

M40-44

4540

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4608

Males

4281

M40-44

4281

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4544

Males

4237

M40-44

4237

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4588

Males

4233

M40-44

4233

25K→30K

15.5 - 18.6 mi

Top 16%
×9story building
+181ft-148ft

Overall

4466

Males

4084

M40-44

4084

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5739

Males

5000

M40-44

5000

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5967

Males

5038

M40-44

5038

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4879

Males

4291

M40-44

4291

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

5181

Males

4432

M40-44

4432

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4797

Males

4111

M40-44

4111

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4978

Males

4188

M40-44

4188

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3786

Males

3268

M40-44

3268

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2945

Males

2626

M40-44

2626

Passing Analysis

Category:
Passed
1810
Passed By
784
Net Change
+1026
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5764
5K → 10K41664+352#5764#5412
10K → 15K23647+189#5412#5223
15K → 20K23932+207#5223#5016
20K → Half4011+29#5016#4987
Half → 25K15440+114#4987#4873
25K → 30K21497+117#4873#4756
30K → 20M48136-88#4756#4844
20M → 21M4895-47#4844#4891
21M → 35K6445+19#4891#4872
35K → 23M8089-9#4872#4881
23M → 24M7159+12#4881#4869
24M → 40K5855+3#4869#4866
40K → 25.2M447+37#4866#4829
25.2M → Finish987+91#4829#4738
TOTALS1810784+1026

Passing Charts

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