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BOSTON MARATHON 2023

Seungyup Yoo

Bib: 31613 M KR

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 34%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:48/mi
24:15
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:32/mi
44:32
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:22/mi
1:04:20
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:43/mi
1:25:13
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:49/mi
1:29:52
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:55/mi
1:46:37
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:12/mi
2:08:58
↑ 181↓ 1480.2%
138 ft elev
20M
7:24/mi
2:19:02
↑ 64↓ 500.2%
148 ft elev
21M
8:05/mi
2:27:07
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:08/mi
2:32:27
↑ 17↓ 861.7%
156 ft elev
23M
7:28/mi
2:41:48
↑ 23↓ 630.6%
116 ft elev
24M
7:36/mi
2:49:24
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:04/mi
2:56:18
↓ 200.3%
20 ft elev
25.2M
8:39/mi
2:59:17
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:36/mi
3:07:02
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:52
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:37:10
Pace7:25 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:5924:157:4824:15
7:48
-
10K
6.21 mi12:04:1644:327:1020:17
6:32
-1:16
15K
9.32 mi12:24:041:04:206:5419:48
6:22
-0:10
20K
12.43 mi12:44:571:25:136:5120:53
6:43
+0:21
Half
13.11 mi12:49:361:29:526:514:39
6:49
+0:06
25K
15.53 mi13:06:211:46:376:5216:45
6:55
+0:06
30K
18.64 mi13:28:422:08:586:5522:21
7:12
+0:17
20M
20.00 mi13:38:462:19:026:5710:04
7:24
+0:12
21M
21.00 mi13:46:512:27:077:008:05
8:05
+0:41
35K
21.75 mi13:52:112:32:277:015:20
7:08
-0:57
23M
23.00 mi14:01:322:41:487:029:21
7:28
+0:20
24M
24.00 mi14:09:082:49:247:047:36
7:36
+0:08
40K
24.85 mi14:16:022:56:187:066:54
8:04
+0:28
25.2M
25.20 mi14:19:012:59:177:072:59
8:39
+0:35
Finish
26.22 mi14:26:463:07:027:087:45
7:36
-1:03

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

6:22 /mi

Average Pace

7:08 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:22

44% of race

Time at Steady Pace

1:02:27

33% of race

Time at Slower Pace

42:13

23% of race

Average Pace: 7:08 /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 mi11:43:5924:157:4824:15
7:48
#12368
10K
6.21 mi12:04:1644:327:1020:17
6:32
#7532
15K
9.32 mi12:24:041:04:206:5419:48
6:22
#5860
20K
12.43 mi12:44:571:25:136:5120:53
6:43
#5397
Half
13.11 mi12:49:361:29:526:514:39
6:49
#5394
25K
15.53 mi13:06:211:46:376:5216:45
6:55
#5312
30K
18.64 mi13:28:422:08:586:5522:21
7:12
#5314
20M
20.00 mi13:38:462:19:026:5710:04
7:24
#5367
21M
21.00 mi13:46:512:27:077:008:05
8:05
#5448
35K
21.75 mi13:52:112:32:277:015:20
7:08
#5448
23M
23.00 mi14:01:322:41:487:029:21
7:28
#5429
24M
24.00 mi14:09:082:49:247:047:36
7:36
#5502
40K
24.85 mi14:16:022:56:187:066:54
8:04
#5603
25.2M
25.20 mi14:19:012:59:177:072:59
8:39
#5641
Finish
26.22 mi14:26:463:07:027:087:45
7:36
#5710
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1236892659265197418901890
10K6.21 mi3.10 mi7532+48366657+26086657+2608296928372837
15K9.32 mi3.11 mi5860+16725371+12865371+1286197418901890
20K12.43 mi3.11 mi5397+4634989+3824989+382375335473547
Half13.11 mi0.68 mi5394+34986+34986+3541149944994
25K15.53 mi2.42 mi5312+824917+694917+69501846434643
30K18.64 mi3.11 mi5314-24909+84909+8546149684968
20M20.00 mi1.36 mi5367-534949-404949-40620454455445
21M21.00 mi1.00 mi5448-815006-575006-57785663866386
35K21.75 mi0.75 mi54485000+65000+6604852565256
23M23.00 mi1.25 mi5429+194976+244976+24622353255325
24M24.00 mi1.00 mi5502-735028-525028-52835365156515
40K24.85 mi0.85 mi5603-1015098-705098-701044075527552
25.2M25.20 mi0.35 mi5641-385117-195117-191033574337433
Finish26.22 mi1.02 mi5710-695158-415158-41926968896889

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1974

Males

1890

M18-39

1890

5K→10K

3.1 - 6.2 mi

Top 11%
×5story building
+79ft-138ft

Overall

2969

Males

2837

M18-39

2837

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1974

Males

1890

M18-39

1890

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

3753

Males

3547

M18-39

3547

20K→Half

12.4 - 13.1 mi

Top 20%
×2story building
+19ft-37ft

Overall

5411

Males

4994

M18-39

4994

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5018

Males

4643

M18-39

4643

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5461

Males

4968

M18-39

4968

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6204

Males

5445

M18-39

5445

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

7856

Males

6386

M18-39

6386

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6048

Males

5256

M18-39

5256

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6223

Males

5325

M18-39

5325

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8353

Males

6515

M18-39

6515

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10440

Males

7552

M18-39

7552

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10335

Males

7433

M18-39

7433

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9269

Males

6889

M18-39

6889

Passing Analysis

Category:
Athletes Passed
7546*
Passed By
888
Net Change
+6658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12368
5K → 10K4836*0+4836#12368#7532
10K → 15K16720+1672#7532#5860
15K → 20K4674+463#5860#5397
20K → Half2219+3#5397#5394
Half → 25K13048+82#5394#5312
25K → 30K128130-2#5312#5314
30K → 20M49102-53#5314#5367
20M → 21M32113-81#5367#5448
21M → 35K35350#5448#5448
35K → 23M7859+19#5448#5429
23M → 24M29102-73#5429#5502
24M → 40K18119-101#5502#5603
40K → 25.2M1149-38#5603#5641
25.2M → Finish39108-69#5641#5710
TOTALS7546*888+6658

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

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