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BOSTON MARATHON 2023

Taisuk Kim

Bib: 1347•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:26
Rank: #1281
Start → 5K
6:15/mi
19:26 split
10K· 6.21 mi
38:40
Rank: #1263 (+18)
5K → 10K
6:11/mi
19:14 split
15K· 9.32 mi
57:59
Rank: #1258 (+5)
10K → 15K
6:13/mi
19:19 split
20K· 12.43 mi
1:17:29
Rank: #1254 (+4)
15K → 20K
6:17/mi
19:30 split
Half· 13.11 mi
1:21:43
Rank: #1261 (-7)
20K → Half
6:12/mi
4:14 split
25K· 15.53 mi
1:36:55
Rank: #1245 (+16)
Half → 25K
6:16/mi
15:12 split
30K· 18.64 mi
1:57:03
Rank: #1259 (-14)
25K → 30K
6:29/mi
20:08 split
20M
2:06:02
Rank: #1299 (-40)
30K → 20M
6:37/mi
8:59 split
21M
2:13:14
Rank: #1357 (-58)
20M → 21M
7:12/mi
7:12 split
35K· 21.75 mi
2:18:00
Rank: #1369 (-12)
21M → 35K
6:22/mi
4:46 split
23M
2:26:31
Rank: #1416 (-47)
35K → 23M
6:48/mi
8:31 split
24M
2:33:17
Rank: #1455 (-39)
23M → 24M
6:46/mi
6:46 split
40K· 24.85 mi
2:39:12
Rank: #1502 (-47)
24M → 40K
6:55/mi
5:55 split
25.2M
2:41:49
Rank: #1530 (-28)
40K → 25.2M
7:35/mi
2:37 split
Finish· 26.22 mi
2:48:36
Rank: #1558 (-28)
25.2M → Finish
6:39/mi
6:47 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:43
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:26:53
Pace6:38 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4619:266:1519:26
6:15
-
10K
6.21 mi10:39:0038:406:1319:14
6:11
-0:04
15K
9.32 mi10:58:1957:596:1319:19
6:13
+0:02
20K
12.43 mi11:17:491:17:296:1419:30
6:17
+0:04
Half
13.11 mi11:22:031:21:436:144:14
6:12
-0:05
25K
15.53 mi11:37:151:36:556:1415:12
6:16
+0:04
30K
18.64 mi11:57:231:57:036:1720:08
6:29
+0:13
20M
20.00 mi12:06:222:06:026:188:59
6:37
+0:08
21M
21.00 mi12:13:342:13:146:217:12
7:12
+0:35
35K
21.75 mi12:18:202:18:006:214:46
6:22
-0:50
23M
23.00 mi12:26:512:26:316:228:31
6:48
+0:26
24M
24.00 mi12:33:372:33:176:236:46
6:46
-0:02
40K
24.85 mi12:39:322:39:126:245:55
6:55
+0:09
25.2M
25.20 mi12:42:092:41:496:252:37
7:35
+0:40
Finish
26.22 mi12:48:562:48:366:266:47
6:39
-0:56

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

6:11 /mi

Average Pace

6:26 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:55

57% of race

Time at Steady Pace

40:40

24% of race

Time at Slower Pace

31:01

18% of race

Average Pace: 6:26 /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 mi10:19:4619:266:1519:26
6:15
#1281
10K
6.21 mi10:39:0038:406:1319:14
6:11
#1263
15K
9.32 mi10:58:1957:596:1319:19
6:13
#1258
20K
12.43 mi11:17:491:17:296:1419:30
6:17
#1254
Half
13.11 mi11:22:031:21:436:144:14
6:12
#1261
25K
15.53 mi11:37:151:36:556:1415:12
6:16
#1245
30K
18.64 mi11:57:231:57:036:1720:08
6:29
#1259
20M
20.00 mi12:06:222:06:026:188:59
6:37
#1299
21M
21.00 mi12:13:342:13:146:217:12
7:12
#1357
35K
21.75 mi12:18:202:18:006:214:46
6:22
#1369
23M
23.00 mi12:26:512:26:316:228:31
6:48
#1416
24M
24.00 mi12:33:372:33:176:236:46
6:46
#1455
40K
24.85 mi12:39:322:39:126:245:55
6:55
#1502
25.2M
25.20 mi12:42:092:41:496:252:37
7:35
#1530
Finish
26.22 mi12:48:562:48:366:266:47
6:39
#1558
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1281121512151310(Top 5%)1248(Top 8%)1248(Top 24%)
10K6.21 mi3.10 mi1263+181198+171198+171319(Top 5%)1256(Top 8%)1256(Top 24%)
15K9.32 mi3.11 mi1258+51195+31195+31310(Top 5%)1248(Top 8%)1248(Top 24%)
20K12.43 mi3.11 mi1254+41194+11194+11309(Top 5%)1250(Top 8%)1250(Top 24%)
Half13.11 mi0.68 mi1261-71202-81202-81402(Top 5%)1342(Top 9%)1342(Top 25%)
25K15.53 mi2.42 mi1245+161190+121190+121222(Top 5%)1168(Top 8%)1168(Top 22%)
30K18.64 mi3.11 mi1259-141204-141204-141497(Top 6%)1433(Top 9%)1433(Top 27%)
20M20.00 mi1.36 mi1299-401241-371241-371886(Top 7%)1798(Top 12%)1798(Top 34%)
21M21.00 mi1.00 mi1357-581296-551296-553054(Top 11%)2858(Top 19%)2858(Top 54%)
35K21.75 mi0.75 mi1369-121306-101306-101823(Top 7%)1729(Top 11%)1729(Top 33%)
23M23.00 mi1.25 mi1416-471351-451351-452640(Top 10%)2473(Top 16%)2473(Top 47%)
24M24.00 mi1.00 mi1455-391388-371388-373432(Top 13%)3157(Top 21%)3157(Top 60%)
40K24.85 mi0.85 mi1502-471433-451433-453382(Top 13%)3083(Top 20%)3083(Top 58%)
25.2M25.20 mi0.35 mi1530-281461-281461-284219(Top 16%)3689(Top 24%)3689(Top 70%)
Finish26.22 mi1.02 mi1558-281490-291490-293244(Top 12%)2916(Top 19%)2916(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1310

Males

1248

M18-39

1248

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1319

Males

1256

M18-39

1256

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1310

Males

1248

M18-39

1248

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1309

Males

1250

M18-39

1250

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1402

Males

1342

M18-39

1342

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1222

Males

1168

M18-39

1168

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1497

Males

1433

M18-39

1433

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1886

Males

1798

M18-39

1798

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3054

Males

2858

M18-39

2858

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1823

Males

1729

M18-39

1729

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2640

Males

2473

M18-39

2473

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3432

Males

3157

M18-39

3157

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3382

Males

3083

M18-39

3083

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4219

Males

3689

M18-39

3689

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3244

Males

2916

M18-39

2916

Passing Analysis

Category:
Athletes Passed
316
Passed By
593
Net Change
-277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1281
5K → 10K8062+18#1281#1263
10K → 15K4439+5#1263#1258
15K → 20K4036+4#1258#1254
20K → Half512-7#1254#1261
Half → 25K3115+16#1261#1245
25K → 30K3751-14#1245#1259
30K → 20M1252-40#1259#1299
20M → 21M967-58#1299#1357
21M → 35K921-12#1357#1369
35K → 23M1562-47#1369#1416
23M → 24M1453-39#1416#1455
24M → 40K653-47#1455#1502
40K → 25.2M230-28#1502#1530
25.2M → Finish1240-28#1530#1558
TOTALS316593-277
📊

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