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BOSTON MARATHON 2023

Seung Hyun Shin

Bib: 10754•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M45-49)
#0 / 2252
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:40
Rank: #10678
Start → 5K
23:40 | 7:37/mi
10K· 6.21 mi
45:30
Rank: #8597 (+2081)
5K → 10K
21:50 | 7:02/mi
15K· 9.32 mi
1:07:05
Rank: #7730 (+867)
10K → 15K
21:35 | 6:57/mi
20K· 12.43 mi
1:28:59
Rank: #7277 (+453)
15K → 20K
21:54 | 7:03/mi
Half· 13.11 mi
1:33:44
Rank: #7234 (+43)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:51:02
Rank: #7046 (+188)
Half → 25K
17:18 | 7:08/mi
30K· 18.64 mi
2:14:43
Rank: #7139 (-93)
25K → 30K
23:41 | 7:37/mi
20M
2:25:31
Rank: #7279 (-140)
30K → 20M
10:48 | 7:57/mi
21M
2:34:31
Rank: #7583 (-304)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:40:17
Rank: #7632 (-49)
21M → 35K
5:46 | 7:42/mi
23M
2:50:46
Rank: #7887 (-255)
35K → 23M
10:29 | 8:22/mi
24M
2:59:13
Rank: #8145 (-258)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:06:48
Rank: #8432 (-287)
24M → 40K
7:35 | 8:52/mi
25.2M
3:10:00
Rank: #8528 (-96)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:18:01
Rank: #8619 (-91)
25.2M → Finish
8:01 | 7:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:44
Pace7:09 /mi
2nd Half
Distance13.11 mi
Time1:44:17
Pace7:57 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2223:407:3723:40
7:37
-
10K
6.21 mi11:12:1245:307:1921:50
7:02
-0:35
15K
9.32 mi11:33:471:07:057:1221:35
6:57
-0:05
20K
12.43 mi11:55:411:28:597:1021:54
7:03
+0:06
Half
13.11 mi12:00:261:33:447:094:45
6:58
-0:05
25K
15.53 mi12:17:441:51:027:0917:18
7:08
+0:10
30K
18.64 mi12:41:252:14:437:1423:41
7:37
+0:29
20M
20.00 mi12:52:132:25:317:1710:48
7:57
+0:20
21M
21.00 mi13:01:132:34:317:219:00
9:00
+1:03
35K
21.75 mi13:06:592:40:177:225:46
7:42
-1:18
23M
23.00 mi13:17:282:50:467:2510:29
8:22
+0:40
24M
24.00 mi13:25:552:59:137:288:27
8:27
+0:05
40K
24.85 mi13:33:303:06:487:317:35
8:52
+0:25
25.2M
25.20 mi13:36:423:10:007:323:12
9:17
+0:25
Finish
26.22 mi13:44:433:18:017:338:01
7:52
-1:25

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

6:57 /mi

Average Pace

7:33 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:22

44% of race

Time at Steady Pace

1:11:56

36% of race

Time at Slower Pace

38:43

20% of race

Average Pace: 7:33 /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 mi10:50:2223:407:3723:40
7:37
#10678
10K
6.21 mi11:12:1245:307:1921:50
7:02
#8597
15K
9.32 mi11:33:471:07:057:1221:35
6:57
#7730
20K
12.43 mi11:55:411:28:597:1021:54
7:03
#7277
Half
13.11 mi12:00:261:33:447:094:45
6:58
#7234
25K
15.53 mi12:17:441:51:027:0917:18
7:08
#7046
30K
18.64 mi12:41:252:14:437:1423:41
7:37
#7139
20M
20.00 mi12:52:132:25:317:1710:48
7:57
#7279
21M
21.00 mi13:01:132:34:317:219:00
9:00
#7583
35K
21.75 mi13:06:592:40:177:225:46
7:42
#7632
23M
23.00 mi13:17:282:50:467:2510:29
8:22
#7887
24M
24.00 mi13:25:552:59:137:288:27
8:27
#8145
40K
24.85 mi13:33:303:06:487:317:35
8:52
#8432
25.2M
25.20 mi13:36:423:10:007:323:12
9:17
#8528
Finish
26.22 mi13:44:433:18:017:338:01
7:52
#8619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10678849084906249(Top 23%)5659(Top 37%)5659(Top 251%)
10K6.21 mi3.10 mi8597+20817330+11607330+11607010(Top 26%)6250(Top 41%)6250(Top 278%)
15K9.32 mi3.11 mi7730+8676777+5536777+5536249(Top 23%)5659(Top 37%)5659(Top 251%)
20K12.43 mi3.11 mi7277+4536449+3286449+3286284(Top 24%)5688(Top 37%)5688(Top 253%)
Half13.11 mi0.68 mi7234+436418+316418+316361(Top 24%)5771(Top 38%)5771(Top 256%)
25K15.53 mi2.42 mi7046+1886270+1486270+1486316(Top 24%)5664(Top 37%)5664(Top 252%)
30K18.64 mi3.11 mi7139-936319-496319-498108(Top 30%)6750(Top 44%)6750(Top 300%)
20M20.00 mi1.36 mi7279-1406397-786397-789851(Top 37%)7662(Top 50%)7662(Top 340%)
21M21.00 mi1.00 mi7583-3046572-1756572-17513373(Top 50%)9204(Top 61%)9204(Top 409%)
35K21.75 mi0.75 mi7632-496601-296601-299938(Top 37%)7592(Top 50%)7592(Top 337%)
23M23.00 mi1.25 mi7887-2556738-1376738-13712358(Top 46%)8614(Top 57%)8614(Top 383%)
24M24.00 mi1.00 mi8145-2586879-1416879-14114149(Top 53%)9360(Top 62%)9360(Top 416%)
40K24.85 mi0.85 mi8432-2877036-1577036-15715421(Top 58%)9854(Top 65%)9854(Top 438%)
25.2M25.20 mi0.35 mi8528-967092-567092-5613980(Top 53%)9198(Top 61%)9198(Top 408%)
Finish26.22 mi1.02 mi8619-917119-277119-2711117(Top 42%)7841(Top 52%)7841(Top 348%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6249

Males

5659

M45-49

5659

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7010

Males

6250

M45-49

6250

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6249

Males

5659

M45-49

5659

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6284

Males

5688

M45-49

5688

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6361

Males

5771

M45-49

5771

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6316

Males

5664

M45-49

5664

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8108

Males

6750

M45-49

6750

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9851

Males

7662

M45-49

7662

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13373

Males

9204

M45-49

9204

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9938

Males

7592

M45-49

7592

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12358

Males

8614

M45-49

8614

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14149

Males

9360

M45-49

9360

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15421

Males

9854

M45-49

9854

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

13980

Males

9198

M45-49

9198

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11117

Males

7841

M45-49

7841

Passing Analysis

Category:
Athletes Passed
3931*
Passed By
1872
Net Change
+2059
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10678
5K → 10K2089*8+2081#10678#8597
10K → 15K8692+867#8597#7730
15K → 20K4574+453#7730#7277
20K → Half463+43#7277#7234
Half → 25K20315+188#7234#7046
25K → 30K89182-93#7046#7139
30K → 20M27167-140#7139#7279
20M → 21M14318-304#7279#7583
21M → 35K2574-49#7583#7632
35K → 23M31286-255#7632#7887
23M → 24M23281-258#7887#8145
24M → 40K16303-287#8145#8432
40K → 25.2M10106-96#8432#8528
25.2M → Finish32123-91#8528#8619
TOTALS3931*1872+2059

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

📊

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