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BOSTON MARATHON 2023

Kevin O'Connor

Bib: 26018•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:42
Rank: #22265
Start → 5K
9:34/mi
29:42 split
10K· 6.21 mi
59:07
Rank: #22362 (-97)
5K → 10K
9:28/mi
29:25 split
15K· 9.32 mi
1:28:59
Rank: #22442 (-80)
10K → 15K
9:37/mi
29:52 split
20K· 12.43 mi
2:00:52
Rank: #22737 (-295)
15K → 20K
10:16/mi
31:53 split
Half· 13.11 mi
2:07:33
Rank: #22740 (-3)
20K → Half
9:48/mi
6:41 split
25K· 15.53 mi
2:32:16
Rank: #22724 (+16)
Half → 25K
10:12/mi
24:43 split
30K· 18.64 mi
3:05:06
Rank: #22634 (+90)
25K → 30K
10:34/mi
32:50 split
20M
3:20:02
Rank: #22640 (-6)
30K → 20M
10:59/mi
14:56 split
21M
3:32:14
Rank: #22682 (-42)
20M → 21M
12:12/mi
12:12 split
35K· 21.75 mi
3:40:11
Rank: #22678 (+4)
21M → 35K
10:38/mi
7:57 split
23M
3:55:21
Rank: #22781 (-103)
35K → 23M
12:07/mi
15:10 split
24M
4:06:01
Rank: #22759 (+22)
23M → 24M
10:40/mi
10:40 split
40K· 24.85 mi
4:15:24
Rank: #22738 (+21)
24M → 40K
10:58/mi
9:23 split
25.2M
4:19:16
Rank: #22707 (+31)
40K → 25.2M
11:13/mi
3:52 split
Finish· 26.22 mi
4:29:33
Rank: #22700 (+7)
25.2M → Finish
10:05/mi
10:17 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:33
Pace9:44 /mi
2nd Half
Distance13.11 mi
Time2:22:00
Pace10:50 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2129:429:3429:42
9:34
-
10K
6.21 mi12:21:4659:079:3129:25
9:28
-0:06
15K
9.32 mi12:51:381:28:599:3329:52
9:37
+0:09
20K
12.43 mi13:23:312:00:529:4431:53
10:16
+0:39
Half
13.11 mi13:30:122:07:339:446:41
9:48
-0:28
25K
15.53 mi13:54:552:32:169:4824:43
10:12
+0:24
30K
18.64 mi14:27:453:05:069:5632:50
10:34
+0:22
20M
20.00 mi14:42:413:20:0210:0014:56
10:59
+0:25
21M
21.00 mi14:54:533:32:1410:0612:12
12:12
+1:13
35K
21.75 mi15:02:503:40:1110:077:57
10:38
-1:34
23M
23.00 mi15:18:003:55:2110:1415:10
12:07
+1:29
24M
24.00 mi15:28:404:06:0110:1510:40
10:40
-1:27
40K
24.85 mi15:38:034:15:2410:179:23
10:58
+0:18
25.2M
25.20 mi15:41:554:19:1610:173:52
11:13
+0:15
Finish
26.22 mi15:52:124:29:3310:1710:17
10:05
-1:08

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

9:28 /mi

Average Pace

10:17 /mi

Slowest Pace

12:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:57

39% of race

Time at Steady Pace

1:57:26

44% of race

Time at Slower Pace

46:10

17% of race

Average Pace: 10:17 /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 mi11:52:2129:429:3429:42
9:34
#22265
10K
6.21 mi12:21:4659:079:3129:25
9:28
#22362
15K
9.32 mi12:51:381:28:599:3329:52
9:37
#22442
20K
12.43 mi13:23:312:00:529:4431:53
10:16
#22737
Half
13.11 mi13:30:122:07:339:446:41
9:48
#22740
25K
15.53 mi13:54:552:32:169:4824:43
10:12
#22724
30K
18.64 mi14:27:453:05:069:5632:50
10:34
#22634
20M
20.00 mi14:42:413:20:0210:0014:56
10:59
#22640
21M
21.00 mi14:54:533:32:1410:0612:12
12:12
#22682
35K
21.75 mi15:02:503:40:1110:077:57
10:38
#22678
23M
23.00 mi15:18:003:55:2110:1415:10
12:07
#22781
24M
24.00 mi15:28:404:06:0110:1510:40
10:40
#22759
40K
24.85 mi15:38:034:15:2410:179:23
10:58
#22738
25.2M
25.20 mi15:41:554:19:1610:173:52
11:13
#22707
Finish
26.22 mi15:52:124:29:3310:1710:17
10:05
#22700
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22265132331323322554(Top 85%)13435(Top 89%)13435(Top 655%)
10K6.21 mi3.10 mi22362-9713312-7913312-7922423(Top 84%)13358(Top 88%)13358(Top 651%)
15K9.32 mi3.11 mi22442-8013358-4613358-4622554(Top 85%)13435(Top 89%)13435(Top 655%)
20K12.43 mi3.11 mi22737-29513509-15113509-15123399(Top 88%)13813(Top 91%)13813(Top 673%)
Half13.11 mi0.68 mi22740-313507+213507+222840(Top 86%)13553(Top 89%)13553(Top 660%)
25K15.53 mi2.42 mi22724+1613483+2413483+2422598(Top 85%)13402(Top 88%)13402(Top 653%)
30K18.64 mi3.11 mi22634+9013413+7013413+7022346(Top 84%)13224(Top 87%)13224(Top 644%)
20M20.00 mi1.36 mi22640-613403+1013403+1022684(Top 85%)13313(Top 88%)13313(Top 649%)
21M21.00 mi1.00 mi22682-4213420-1713420-1723045(Top 87%)13445(Top 89%)13445(Top 655%)
35K21.75 mi0.75 mi22678+413407+1313407+1322618(Top 85%)13215(Top 87%)13215(Top 644%)
23M23.00 mi1.25 mi22781-10313447-4013447-4024142(Top 91%)13912(Top 92%)13912(Top 678%)
24M24.00 mi1.00 mi22759+2213429+1813429+1822371(Top 84%)13051(Top 86%)13051(Top 636%)
40K24.85 mi0.85 mi22738+2113417+1213417+1222288(Top 84%)12977(Top 86%)12977(Top 632%)
25.2M25.20 mi0.35 mi22707+3113398+1913398+1920932(Top 79%)12365(Top 81%)12365(Top 603%)
Finish26.22 mi1.02 mi22700+713388+1013388+1022003(Top 83%)12865(Top 85%)12865(Top 627%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22554

Males

13435

M50-54

13435

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22423

Males

13358

M50-54

13358

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22554

Males

13435

M50-54

13435

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23399

Males

13813

M50-54

13813

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22840

Males

13553

M50-54

13553

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22598

Males

13402

M50-54

13402

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22346

Males

13224

M50-54

13224

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22684

Males

13313

M50-54

13313

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23045

Males

13445

M50-54

13445

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22618

Males

13215

M50-54

13215

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24142

Males

13912

M50-54

13912

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22371

Males

13051

M50-54

13051

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22288

Males

12977

M50-54

12977

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20932

Males

12365

M50-54

12365

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22003

Males

12865

M50-54

12865

Passing Analysis

Category:
Athletes Passed
964
Passed By
1399
Net Change
-435
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22265
5K → 10K199296-97#22265#22362
10K → 15K122202-80#22362#22442
15K → 20K56351-295#22442#22737
20K → Half1821-3#22737#22740
Half → 25K10488+16#22740#22724
25K → 30K16070+90#22724#22634
30K → 20M5561-6#22634#22640
20M → 21M3678-42#22640#22682
21M → 35K3733+4#22682#22678
35K → 23M21124-103#22678#22781
23M → 24M4624+22#22781#22759
24M → 40K4019+21#22759#22738
40K → 25.2M332+31#22738#22707
25.2M → Finish3730+7#22707#22700
TOTALS9641399-435
📊

Passing Visuals

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