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BOSTON MARATHON 2023

Jack Mckim

Bib: 25894•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:45
Rank: #20122
Start → 5K
27:45 | 8:56/mi
10K· 6.21 mi
55:20
Rank: #20224 (-102)
5K → 10K
27:35 | 8:53/mi
15K· 9.32 mi
1:23:15
Rank: #20264 (-40)
10K → 15K
27:55 | 8:59/mi
20K· 12.43 mi
1:50:59
Rank: #20014 (+250)
15K → 20K
27:44 | 8:56/mi
Half· 13.11 mi
1:57:03
Rank: #20016 (-2)
20K → Half
6:04 | 8:54/mi
25K· 15.53 mi
2:19:38
Rank: #20062 (-46)
Half → 25K
22:35 | 9:19/mi
30K· 18.64 mi
2:49:34
Rank: #20036 (+26)
25K → 30K
29:56 | 9:38/mi
20M
3:03:52
Rank: #20226 (-190)
30K → 20M
14:18 | 10:31/mi
21M
3:15:13
Rank: #20318 (-92)
20M → 21M
11:21 | 11:21/mi
35K· 21.75 mi
3:22:44
Rank: #20347 (-29)
21M → 35K
7:31 | 10:03/mi
23M
3:35:47
Rank: #20404 (-57)
35K → 23M
13:03 | 10:25/mi
24M
3:46:32
Rank: #20511 (-107)
23M → 24M
10:45 | 10:45/mi
40K· 24.85 mi
3:55:49
Rank: #20596 (-85)
24M → 40K
9:17 | 10:51/mi
25.2M
3:59:32
Rank: #20586 (+10)
40K → 25.2M
3:43 | 10:47/mi
Finish· 26.22 mi
4:09:27
Rank: #20589 (-3)
25.2M → Finish
9:55 | 9:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:03
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:12:24
Pace10:06 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:5127:458:5627:45
8:56
-
10K
6.21 mi12:11:2655:208:5427:35
8:53
-0:03
15K
9.32 mi12:39:211:23:158:5627:55
8:59
+0:06
20K
12.43 mi13:07:051:50:598:5627:44
8:56
-0:03
Half
13.11 mi13:13:091:57:038:566:04
8:54
-0:02
25K
15.53 mi13:35:442:19:388:5922:35
9:19
+0:25
30K
18.64 mi14:05:402:49:349:0629:56
9:38
+0:19
20M
20.00 mi14:19:583:03:529:1214:18
10:31
+0:53
21M
21.00 mi14:31:193:15:139:1811:21
11:21
+0:50
35K
21.75 mi14:38:503:22:449:197:31
10:03
-1:18
23M
23.00 mi14:51:533:35:479:2313:03
10:25
+0:22
24M
24.00 mi15:02:383:46:329:2610:45
10:45
+0:20
40K
24.85 mi15:11:553:55:499:299:17
10:51
+0:06
25.2M
25.20 mi15:15:383:59:329:303:43
10:47
-0:04
Finish
26.22 mi15:25:334:09:279:319:55
9:44
-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

8:53 /mi

Average Pace

9:31 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:38

56% of race

Time at Steady Pace

47:22

19% of race

Time at Slower Pace

1:02:27

25% of race

Average Pace: 9:31 /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 mi11:43:5127:458:5627:45
8:56
#20122
10K
6.21 mi12:11:2655:208:5427:35
8:53
#20224
15K
9.32 mi12:39:211:23:158:5627:55
8:59
#20264
20K
12.43 mi13:07:051:50:598:5627:44
8:56
#20014
Half
13.11 mi13:13:091:57:038:566:04
8:54
#20016
25K
15.53 mi13:35:442:19:388:5922:35
9:19
#20062
30K
18.64 mi14:05:402:49:349:0629:56
9:38
#20036
20M
20.00 mi14:19:583:03:529:1214:18
10:31
#20226
21M
21.00 mi14:31:193:15:139:1811:21
11:21
#20318
35K
21.75 mi14:38:503:22:449:197:31
10:03
#20347
23M
23.00 mi14:51:533:35:479:2313:03
10:25
#20404
24M
24.00 mi15:02:383:46:329:2610:45
10:45
#20511
40K
24.85 mi15:11:553:55:499:299:17
10:51
#20596
25.2M
25.20 mi15:15:383:59:329:303:43
10:47
#20586
Finish
26.22 mi15:25:334:09:279:319:55
9:44
#20589
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20122122131221320432(Top 77%)12495(Top 82%)12495(Top 236%)
10K6.21 mi3.10 mi20224-10212320-10712320-10720325(Top 76%)12422(Top 82%)12422(Top 235%)
15K9.32 mi3.11 mi20264-4012355-3512355-3520432(Top 77%)12495(Top 82%)12495(Top 236%)
20K12.43 mi3.11 mi20014+25012264+9112264+9119340(Top 73%)12032(Top 79%)12032(Top 228%)
Half13.11 mi0.68 mi20016-212263+112263+119941(Top 75%)12294(Top 81%)12294(Top 233%)
25K15.53 mi2.42 mi20062-4612301-3812301-3820236(Top 76%)12389(Top 82%)12389(Top 234%)
30K18.64 mi3.11 mi20036+2612269+3212269+3219917(Top 75%)12178(Top 80%)12178(Top 230%)
20M20.00 mi1.36 mi20226-19012335-6612335-6621776(Top 82%)12894(Top 85%)12894(Top 244%)
21M21.00 mi1.00 mi20318-9212368-3312368-3321584(Top 81%)12786(Top 84%)12786(Top 242%)
35K21.75 mi0.75 mi20347-2912369-112369-121388(Top 80%)12657(Top 83%)12657(Top 239%)
23M23.00 mi1.25 mi20404-5712386-1712386-1721122(Top 79%)12503(Top 82%)12503(Top 237%)
24M24.00 mi1.00 mi20511-10712423-3712423-3722553(Top 85%)13137(Top 87%)13137(Top 249%)
40K24.85 mi0.85 mi20596-8512445-2212445-2222042(Top 83%)12848(Top 85%)12848(Top 243%)
25.2M25.20 mi0.35 mi20586+1012441+412441+419892(Top 75%)11871(Top 78%)11871(Top 225%)
Finish26.22 mi1.02 mi20589-312432+912432+920896(Top 78%)12376(Top 82%)12376(Top 234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

20432

Males

12495

M18-39

12495

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20325

Males

12422

M18-39

12422

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

20432

Males

12495

M18-39

12495

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19340

Males

12032

M18-39

12032

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

19941

Males

12294

M18-39

12294

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20236

Males

12389

M18-39

12389

25K→30K

15.5 - 18.6 mi

Top 75%
×9stories
+181ft-148ft

Overall

19917

Males

12178

M18-39

12178

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21776

Males

12894

M18-39

12894

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21584

Males

12786

M18-39

12786

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21388

Males

12657

M18-39

12657

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21122

Males

12503

M18-39

12503

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22553

Males

13137

M18-39

13137

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22042

Males

12848

M18-39

12848

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19892

Males

11871

M18-39

11871

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20896

Males

12376

M18-39

12376

Passing Analysis

Category:
Athletes Passed
1311
Passed By
1778
Net Change
-467
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20122
5K → 10K256358-102#20122#20224
10K → 15K159199-40#20224#20264
15K → 20K30757+250#20264#20014
20K → Half3335-2#20014#20016
Half → 25K118164-46#20016#20062
25K → 30K169143+26#20062#20036
30K → 20M41231-190#20036#20226
20M → 21M48140-92#20226#20318
21M → 35K3261-29#20318#20347
35K → 23M45102-57#20347#20404
23M → 24M19126-107#20404#20511
24M → 40K20105-85#20511#20596
40K → 25.2M2111+10#20596#20586
25.2M → Finish4346-3#20586#20589
TOTALS13111778-467
📊

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