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BOSTON MARATHON 2023

Steve Kim

Bib: 16694•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:30
Rank: #15508
Start → 5K
25:30 | 8:12/mi
10K· 6.21 mi
49:25
Rank: #13997 (+1511)
5K → 10K
23:55 | 7:42/mi
15K· 9.32 mi
1:13:32
Rank: #13484 (+513)
10K → 15K
24:07 | 7:46/mi
20K· 12.43 mi
1:38:38
Rank: #13593 (-109)
15K → 20K
25:06 | 8:05/mi
Half· 13.11 mi
1:44:04
Rank: #13621 (-28)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:03:40
Rank: #13559 (+62)
Half → 25K
19:36 | 8:05/mi
30K· 18.64 mi
2:30:00
Rank: #13647 (-88)
25K → 30K
26:20 | 8:29/mi
20M
2:41:29
Rank: #13623 (+24)
30K → 20M
11:29 | 8:27/mi
21M
2:50:44
Rank: #13689 (-66)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
2:57:12
Rank: #13786 (-97)
21M → 35K
6:28 | 8:39/mi
23M
3:07:53
Rank: #13734 (+52)
35K → 23M
10:41 | 8:32/mi
24M
3:16:08
Rank: #13671 (+63)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:23:19
Rank: #13610 (+61)
24M → 40K
7:11 | 8:24/mi
25.2M
3:26:21
Rank: #13566 (+44)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:34:19
Rank: #13436 (+130)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:04
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:50:15
Pace8:25 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4225:308:1225:30
8:12
-
10K
6.21 mi11:39:3749:257:5723:55
7:42
-0:30
15K
9.32 mi12:03:441:13:327:5324:07
7:46
+0:04
20K
12.43 mi12:28:501:38:387:5625:06
8:05
+0:19
Half
13.11 mi12:34:161:44:047:565:26
7:58
-0:07
25K
15.53 mi12:53:522:03:407:5819:36
8:05
+0:07
30K
18.64 mi13:20:122:30:008:0326:20
8:29
+0:24
20M
20.00 mi13:31:412:41:298:0411:29
8:27
-0:02
21M
21.00 mi13:40:562:50:448:089:15
9:15
+0:48
35K
21.75 mi13:47:242:57:128:096:28
8:39
-0:36
23M
23.00 mi13:58:053:07:538:1010:41
8:32
-0:07
24M
24.00 mi14:06:203:16:088:108:15
8:15
-0:17
40K
24.85 mi14:13:313:23:198:117:11
8:24
+0:09
25.2M
25.20 mi14:16:333:26:218:113:02
8:48
+0:24
Finish
26.22 mi14:24:313:34:198:117:58
7:49
-0:59

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

7:42 /mi

Average Pace

8:11 /mi

Slowest Pace

9:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:26

29% of race

Time at Steady Pace

1:37:07

45% of race

Time at Slower Pace

55:46

26% of race

Average Pace: 8:10 /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 mi11:15:4225:308:1225:30
8:12
#15508
10K
6.21 mi11:39:3749:257:5723:55
7:42
#13997
15K
9.32 mi12:03:441:13:327:5324:07
7:46
#13484
20K
12.43 mi12:28:501:38:387:5625:06
8:05
#13593
Half
13.11 mi12:34:161:44:047:565:26
7:58
#13621
25K
15.53 mi12:53:522:03:407:5819:36
8:05
#13559
30K
18.64 mi13:20:122:30:008:0326:20
8:29
#13647
20M
20.00 mi13:31:412:41:298:0411:29
8:27
#13623
21M
21.00 mi13:40:562:50:448:089:15
9:15
#13689
35K
21.75 mi13:47:242:57:128:096:28
8:39
#13786
23M
23.00 mi13:58:053:07:538:1010:41
8:32
#13734
24M
24.00 mi14:06:203:16:088:108:15
8:15
#13671
40K
24.85 mi14:13:313:23:198:117:11
8:24
#13610
25.2M
25.20 mi14:16:333:26:218:113:02
8:48
#13566
Finish
26.22 mi14:24:313:34:198:117:58
7:49
#13436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15508105131051312393(Top 47%)9251(Top 61%)9251(Top 651%)
10K6.21 mi3.10 mi13997+15119938+5759938+57512211(Top 46%)9204(Top 61%)9204(Top 647%)
15K9.32 mi3.11 mi13484+5139727+2119727+21112393(Top 47%)9251(Top 61%)9251(Top 651%)
20K12.43 mi3.11 mi13593-1099737-109737-1014077(Top 53%)9909(Top 65%)9909(Top 697%)
Half13.11 mi0.68 mi13621-289745-89745-814017(Top 53%)9900(Top 65%)9900(Top 696%)
25K15.53 mi2.42 mi13559+629704+419704+4113392(Top 50%)9521(Top 63%)9521(Top 670%)
30K18.64 mi3.11 mi13647-889707-39707-314140(Top 53%)9704(Top 64%)9704(Top 682%)
20M20.00 mi1.36 mi13623+249675+329675+3213311(Top 50%)9269(Top 61%)9269(Top 652%)
21M21.00 mi1.00 mi13689-669690-159690-1514695(Top 55%)9801(Top 65%)9801(Top 689%)
35K21.75 mi0.75 mi13786-979704-149704-1416054(Top 60%)10304(Top 68%)10304(Top 725%)
23M23.00 mi1.25 mi13734+529652+529652+5213418(Top 50%)9106(Top 60%)9106(Top 640%)
24M24.00 mi1.00 mi13671+639608+449608+4412920(Top 49%)8812(Top 58%)8812(Top 620%)
40K24.85 mi0.85 mi13610+619565+439565+4312695(Top 48%)8630(Top 57%)8630(Top 607%)
25.2M25.20 mi0.35 mi13566+449540+259540+2511276(Top 42%)7939(Top 52%)7939(Top 558%)
Finish26.22 mi1.02 mi13436+1309463+779463+7710791(Top 41%)7702(Top 51%)7702(Top 542%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12393

Males

9251

M55-59

9251

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

12211

Males

9204

M55-59

9204

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12393

Males

9251

M55-59

9251

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14077

Males

9909

M55-59

9909

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14017

Males

9900

M55-59

9900

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

13392

Males

9521

M55-59

9521

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14140

Males

9704

M55-59

9704

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13311

Males

9269

M55-59

9269

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14695

Males

9801

M55-59

9801

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

16054

Males

10304

M55-59

10304

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13418

Males

9106

M55-59

9106

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

12920

Males

8812

M55-59

8812

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12695

Males

8630

M55-59

8630

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11276

Males

7939

M55-59

7939

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10791

Males

7702

M55-59

7702

Passing Analysis

Category:
Athletes Passed
3288
Passed By
1216
Net Change
+2072
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15508
5K → 10K154029+1511#15508#13997
10K → 15K54633+513#13997#13484
15K → 20K142251-109#13484#13593
20K → Half1947-28#13593#13621
Half → 25K15593+62#13621#13559
25K → 30K165253-88#13559#13647
30K → 20M11288+24#13647#13623
20M → 21M71137-66#13623#13689
21M → 35K33130-97#13689#13786
35K → 23M10654+52#13786#13734
23M → 24M9633+63#13734#13671
24M → 40K10140+61#13671#13610
40K → 25.2M506+44#13610#13566
25.2M → Finish15222+130#13566#13436
TOTALS32881216+2072
📊

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