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BOSTON MARATHON 2023

Ilhan Oh

Bib: 12111•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M55-59)
#0 / 1422
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:38/mi
23:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
46:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:09:41
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:33:02
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:38:04
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:56:33
↑ 66↓ 880.2%
30K· 18.64 mi
7:48/mi
2:20:46
↑ 181↓ 1480.2%
20M
7:51/mi
2:31:26
↑ 64↓ 500.2%
21M
8:16/mi
2:39:42
↑ 106↓ 241.6%
35K· 21.75 mi
7:30/mi
2:45:19
↑ 17↓ 861.7%
23M
7:54/mi
2:55:13
↑ 23↓ 630.6%
24M
7:44/mi
3:02:57
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:09:43
↓ 200.3%
25.2M
8:19/mi
3:12:35
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:20:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:04
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:42:04
Pace7:47 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1423:447:3823:44
7:38
-
10K
6.21 mi11:19:2146:517:3223:07
7:26
-0:12
15K
9.32 mi11:42:111:09:417:2922:50
7:21
-0:05
20K
12.43 mi12:05:321:33:027:2923:21
7:31
+0:10
Half
13.11 mi12:10:341:38:047:295:02
7:23
-0:08
25K
15.53 mi12:29:031:56:337:3018:29
7:37
+0:14
30K
18.64 mi12:53:162:20:467:3324:13
7:48
+0:11
20M
20.00 mi13:03:562:31:267:3410:40
7:51
+0:03
21M
21.00 mi13:12:122:39:427:368:16
8:16
+0:25
35K
21.75 mi13:17:492:45:197:365:37
7:30
-0:46
23M
23.00 mi13:27:432:55:137:379:54
7:54
+0:24
24M
24.00 mi13:35:273:02:577:377:44
7:44
-0:10
40K
24.85 mi13:42:133:09:437:386:46
7:55
+0:11
25.2M
25.20 mi13:45:053:12:357:392:52
8:19
+0:24
Finish
26.22 mi13:52:383:20:087:387:33
7:25
-0:54

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

7:21 /mi

Average Pace

7:38 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:00

94% of race

Time at Steady Pace

11:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /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 mi10:56:1423:447:3823:44
7:38
#10900
10K
6.21 mi11:19:2146:517:3223:07
7:26
#10380
15K
9.32 mi11:42:111:09:417:2922:50
7:21
#9827
20K
12.43 mi12:05:321:33:027:2923:21
7:31
#9695
Half
13.11 mi12:10:341:38:047:295:02
7:23
#9663
25K
15.53 mi12:29:031:56:337:3018:29
7:37
#9675
30K
18.64 mi12:53:162:20:467:3324:13
7:48
#9595
20M
20.00 mi13:03:562:31:267:3410:40
7:51
#9530
21M
21.00 mi13:12:122:39:427:368:16
8:16
#9469
35K
21.75 mi13:17:492:45:197:365:37
7:30
#9414
23M
23.00 mi13:27:432:55:137:379:54
7:54
#9356
24M
24.00 mi13:35:273:02:577:377:44
7:44
#9316
40K
24.85 mi13:42:133:09:437:386:46
7:55
#9310
25.2M
25.20 mi13:45:053:12:357:392:52
8:19
#9292
Finish
26.22 mi13:52:383:20:087:387:33
7:25
#9226
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi10900860586058923(Top 34%)7492(Top 49%)7492(Top 527%)
10K6.21 mi3.10 mi10380+5208347+2588347+2589969(Top 37%)8153(Top 54%)8153(Top 573%)
15K9.32 mi3.11 mi9827+5538061+2868061+2868923(Top 34%)7492(Top 49%)7492(Top 527%)
20K12.43 mi3.11 mi9695+1327980+817980+819427(Top 35%)7753(Top 51%)7753(Top 545%)
Half13.11 mi0.68 mi9663+327959+217959+219196(Top 35%)7631(Top 50%)7631(Top 537%)
25K15.53 mi2.42 mi9675-127947+127947+129709(Top 36%)7822(Top 52%)7822(Top 550%)
30K18.64 mi3.11 mi9595+807868+797868+799309(Top 35%)7458(Top 49%)7458(Top 524%)
20M20.00 mi1.36 mi9530+657798+707798+709205(Top 35%)7309(Top 48%)7309(Top 514%)
21M21.00 mi1.00 mi9469+617736+627736+628999(Top 34%)7068(Top 47%)7068(Top 497%)
35K21.75 mi0.75 mi9414+557684+527684+528579(Top 32%)6853(Top 45%)6853(Top 482%)
23M23.00 mi1.25 mi9356+587631+537631+539109(Top 34%)7008(Top 46%)7008(Top 493%)
24M24.00 mi1.00 mi9316+407586+457586+459274(Top 35%)7026(Top 46%)7026(Top 494%)
40K24.85 mi0.85 mi9310+67547+397547+399406(Top 35%)7033(Top 46%)7033(Top 495%)
25.2M25.20 mi0.35 mi9292+187526+217526+218347(Top 31%)6379(Top 42%)6379(Top 449%)
Finish26.22 mi1.02 mi9226+667465+617465+617848(Top 29%)6083(Top 40%)6083(Top 428%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

8923

Males

7492

M55-59

7492

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9969

Males

8153

M55-59

8153

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

8923

Males

7492

M55-59

7492

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9427

Males

7753

M55-59

7753

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9196

Males

7631

M55-59

7631

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9709

Males

7822

M55-59

7822

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9309

Males

7458

M55-59

7458

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9205

Males

7309

M55-59

7309

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

8999

Males

7068

M55-59

7068

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8579

Males

6853

M55-59

6853

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9109

Males

7008

M55-59

7008

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9274

Males

7026

M55-59

7026

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9406

Males

7033

M55-59

7033

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8347

Males

6379

M55-59

6379

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7848

Males

6083

M55-59

6083

Passing Analysis

Category:
Athletes Passed
2466*
Passed By
792
Net Change
+1674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10900
5K → 10K615*95+520#10900#10380
10K → 15K572*19+553#10380#9827
15K → 20K216*84+132#9827#9695
20K → Half419+32#9695#9663
Half → 25K119131-12#9663#9675
25K → 30K206*126+80#9675#9595
30K → 20M11651+65#9595#9530
20M → 21M10645+61#9530#9469
21M → 35K8126+55#9469#9414
35K → 23M10648+58#9414#9356
23M → 24M8545+40#9356#9316
24M → 40K7468+6#9316#9310
40K → 25.2M3315+18#9310#9292
25.2M → Finish9630+66#9292#9226
TOTALS2466*792+1674

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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