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BOSTON MARATHON 2023

James Oh

Bib: 3487•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M40-44)
#0 / 2241
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #2418
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
40:04
Rank: #2222 (+196)
5K → 10K
19:47 | 6:22/mi
15K· 9.32 mi
59:56
Rank: #2151 (+71)
10K → 15K
19:52 | 6:24/mi
20K· 12.43 mi
1:19:54
Rank: #2081 (+70)
15K → 20K
19:58 | 6:26/mi
Half· 13.11 mi
1:24:14
Rank: #2075 (+6)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:39:59
Rank: #2077 (-2)
Half → 25K
15:45 | 6:30/mi
30K· 18.64 mi
2:00:35
Rank: #2068 (+9)
25K → 30K
20:36 | 6:38/mi
20M
2:09:37
Rank: #2050 (+18)
30K → 20M
9:02 | 6:39/mi
21M
2:16:59
Rank: #2117 (-67)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:21:47
Rank: #2106 (+11)
21M → 35K
4:48 | 6:25/mi
23M
2:30:14
Rank: #2090 (+16)
35K → 23M
8:27 | 6:45/mi
24M
2:36:54
Rank: #2107 (-17)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:43:02
Rank: #2176 (-69)
24M → 40K
6:08 | 7:11/mi
25.2M
2:45:31
Rank: #2168 (+8)
40K → 25.2M
2:29 | 7:11/mi
Finish· 26.22 mi
2:52:46
Rank: #2240 (-72)
25.2M → Finish
7:15 | 7:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:14
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:28:32
Pace6:45 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1920:176:3220:17
6:32
-
10K
6.21 mi10:41:0640:046:2719:47
6:22
-0:10
15K
9.32 mi11:00:5859:566:2619:52
6:24
+0:02
20K
12.43 mi11:20:561:19:546:2619:58
6:26
+0:02
Half
13.11 mi11:25:161:24:146:264:20
6:21
-0:05
25K
15.53 mi11:41:011:39:596:2615:45
6:30
+0:09
30K
18.64 mi12:01:372:00:356:2820:36
6:38
+0:08
20M
20.00 mi12:10:392:09:376:299:02
6:39
+0:01
21M
21.00 mi12:18:012:16:596:317:22
7:22
+0:43
35K
21.75 mi12:22:492:21:476:314:48
6:25
-0:57
23M
23.00 mi12:31:162:30:146:328:27
6:45
+0:20
24M
24.00 mi12:37:562:36:546:326:40
6:40
-0:05
40K
24.85 mi12:44:042:43:026:346:08
7:11
+0:31
25.2M
25.20 mi12:46:332:45:316:342:29
7:11
0:00
Finish
26.22 mi12:53:482:52:466:367:15
7:07
-0:04

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

6:21 /mi

Average Pace

6:36 /mi

Slowest Pace

7:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:32

87% of race

Time at Steady Pace

23:14

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:35 /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 mi10:21:1920:176:3220:17
6:32
#2418
10K
6.21 mi10:41:0640:046:2719:47
6:22
#2222
15K
9.32 mi11:00:5859:566:2619:52
6:24
#2151
20K
12.43 mi11:20:561:19:546:2619:58
6:26
#2081
Half
13.11 mi11:25:161:24:146:264:20
6:21
#2075
25K
15.53 mi11:41:011:39:596:2615:45
6:30
#2077
30K
18.64 mi12:01:372:00:356:2820:36
6:38
#2068
20M
20.00 mi12:10:392:09:376:299:02
6:39
#2050
21M
21.00 mi12:18:012:16:596:317:22
7:22
#2117
35K
21.75 mi12:22:492:21:476:314:48
6:25
#2106
23M
23.00 mi12:31:162:30:146:328:27
6:45
#2090
24M
24.00 mi12:37:562:36:546:326:40
6:40
#2107
40K
24.85 mi12:44:042:43:026:346:08
7:11
#2176
25.2M
25.20 mi12:46:332:45:316:342:29
7:11
#2168
Finish
26.22 mi12:53:482:52:466:367:15
7:07
#2240
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2418230523052073(Top 8%)1988(Top 13%)1988(Top 89%)
10K6.21 mi3.10 mi2222+1962125+1802125+1802067(Top 8%)1978(Top 13%)1978(Top 88%)
15K9.32 mi3.11 mi2151+712063+622063+622073(Top 8%)1988(Top 13%)1988(Top 89%)
20K12.43 mi3.11 mi2081+701993+701993+701918(Top 7%)1841(Top 12%)1841(Top 82%)
Half13.11 mi0.68 mi2075+61987+61987+62014(Top 8%)1937(Top 13%)1937(Top 86%)
25K15.53 mi2.42 mi2077-21992-51992-52150(Top 8%)2063(Top 14%)2063(Top 92%)
30K18.64 mi3.11 mi2068+91984+81984+82098(Top 8%)2005(Top 13%)2005(Top 89%)
20M20.00 mi1.36 mi2050+181965+191965+192063(Top 8%)1967(Top 13%)1967(Top 88%)
21M21.00 mi1.00 mi2117-672029-642029-643931(Top 15%)3623(Top 24%)3623(Top 162%)
35K21.75 mi0.75 mi2106+112019+102019+102035(Top 8%)1933(Top 13%)1933(Top 86%)
23M23.00 mi1.25 mi2090+162004+152004+152376(Top 9%)2233(Top 15%)2233(Top 100%)
24M24.00 mi1.00 mi2107-172022-182022-182894(Top 11%)2686(Top 18%)2686(Top 120%)
40K24.85 mi0.85 mi2176-692088-662088-664796(Top 18%)4196(Top 28%)4196(Top 187%)
25.2M25.20 mi0.35 mi2168+82081+72081+72424(Top 9%)2238(Top 15%)2238(Top 100%)
Finish26.22 mi1.02 mi2240-722145-642145-645864(Top 22%)4830(Top 32%)4830(Top 216%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2073

Males

1988

M40-44

1988

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2067

Males

1978

M40-44

1978

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2073

Males

1988

M40-44

1988

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1918

Males

1841

M40-44

1841

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2014

Males

1937

M40-44

1937

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2150

Males

2063

M40-44

2063

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2098

Males

2005

M40-44

2005

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2063

Males

1967

M40-44

1967

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3931

Males

3623

M40-44

3623

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2035

Males

1933

M40-44

1933

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2376

Males

2233

M40-44

2233

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2894

Males

2686

M40-44

2686

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4796

Males

4196

M40-44

4196

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2424

Males

2238

M40-44

2238

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5864

Males

4830

M40-44

4830

Passing Analysis

Category:
Athletes Passed
763
Passed By
585
Net Change
+178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2418
5K → 10K24448+196#2418#2222
10K → 15K11039+71#2222#2151
15K → 20K9525+70#2151#2081
20K → Half148+6#2081#2075
Half → 25K4345-2#2075#2077
25K → 30K7465+9#2077#2068
30K → 20M4123+18#2068#2050
20M → 21M1178-67#2050#2117
21M → 35K2211+11#2117#2106
35K → 23M5236+16#2106#2090
23M → 24M2239-17#2090#2107
24M → 40K978-69#2107#2176
40K → 25.2M179+8#2176#2168
25.2M → Finish981-72#2168#2240
TOTALS763585+178
📊

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