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BOSTON MARATHON 2023

Zachary Kimball

Bib: 8279•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Masters (Masters Men)
#0 / 9891
Top 15%
Division (M40-44)
#0 / 2241
Top 36%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:37
Rank: #3142
Start → 5K
20:37 | 6:38/mi
10K· 6.21 mi
41:45
Rank: #4187 (-1045)
5K → 10K
21:08 | 6:48/mi
15K· 9.32 mi
1:02:57
Rank: #4549 (-362)
10K → 15K
21:12 | 6:49/mi
20K· 12.43 mi
1:24:10
Rank: #4580 (-31)
15K → 20K
21:13 | 6:50/mi
Half· 13.11 mi
1:28:46
Rank: #4569 (+11)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:15
Rank: #4458 (+111)
Half → 25K
16:29 | 6:48/mi
30K· 18.64 mi
2:07:24
Rank: #4619 (-161)
25K → 30K
22:09 | 7:08/mi
20M
2:17:25
Rank: #4763 (-144)
30K → 20M
10:01 | 7:22/mi
21M
2:25:24
Rank: #4914 (-151)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:30:15
Rank: #4770 (+144)
21M → 35K
4:51 | 6:29/mi
23M
2:38:58
Rank: #4673 (+97)
35K → 23M
8:43 | 6:58/mi
24M
2:45:51
Rank: #4610 (+63)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:52:25
Rank: #4700 (-90)
24M → 40K
6:34 | 7:41/mi
25.2M
2:55:16
Rank: #4730 (-30)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:02:44
Rank: #4769 (-39)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:46
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:33:58
Pace7:10 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:4220:376:3820:37
6:38
-
10K
6.21 mi11:06:5041:456:4321:08
6:48
+0:10
15K
9.32 mi11:28:021:02:576:4521:12
6:49
+0:01
20K
12.43 mi11:49:151:24:106:4621:13
6:50
+0:01
Half
13.11 mi11:53:511:28:466:464:36
6:45
-0:05
25K
15.53 mi12:10:201:45:156:4716:29
6:48
+0:03
30K
18.64 mi12:32:292:07:246:5022:09
7:08
+0:20
20M
20.00 mi12:42:302:17:256:5210:01
7:22
+0:14
21M
21.00 mi12:50:292:25:246:557:59
7:59
+0:37
35K
21.75 mi12:55:202:30:156:554:51
6:29
-1:30
23M
23.00 mi13:04:032:38:586:558:43
6:58
+0:29
24M
24.00 mi13:10:562:45:516:556:53
6:53
-0:05
40K
24.85 mi13:17:302:52:256:566:34
7:41
+0:48
25.2M
25.20 mi13:20:212:55:166:572:51
8:16
+0:35
Finish
26.22 mi13:27:493:02:446:587:28
7:20
-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

6:29 /mi

Average Pace

6:58 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:28

14% of race

Time at Steady Pace

1:40:14

55% of race

Time at Slower Pace

57:02

31% of race

Average Pace: 6:58 /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 mi10:45:4220:376:3820:37
6:38
#3142
10K
6.21 mi11:06:5041:456:4321:08
6:48
#4187
15K
9.32 mi11:28:021:02:576:4521:12
6:49
#4549
20K
12.43 mi11:49:151:24:106:4621:13
6:50
#4580
Half
13.11 mi11:53:511:28:466:464:36
6:45
#4569
25K
15.53 mi12:10:201:45:156:4716:29
6:48
#4458
30K
18.64 mi12:32:292:07:246:5022:09
7:08
#4619
20M
20.00 mi12:42:302:17:256:5210:01
7:22
#4763
21M
21.00 mi12:50:292:25:246:557:59
7:59
#4914
35K
21.75 mi12:55:202:30:156:554:51
6:29
#4770
23M
23.00 mi13:04:032:38:586:558:43
6:58
#4673
24M
24.00 mi13:10:562:45:516:556:53
6:53
#4610
40K
24.85 mi13:17:302:52:256:566:34
7:41
#4700
25.2M
25.20 mi13:20:212:55:166:572:51
8:16
#4730
Finish
26.22 mi13:27:493:02:446:587:28
7:20
#4769
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3142297029705328(Top 20%)4920(Top 32%)4920(Top 220%)
10K6.21 mi3.10 mi4187-10453925-9553925-9555319(Top 20%)4914(Top 32%)4914(Top 219%)
15K9.32 mi3.11 mi4549-3624249-3244249-3245328(Top 20%)4920(Top 32%)4920(Top 220%)
20K12.43 mi3.11 mi4580-314275-264275-264711(Top 18%)4383(Top 29%)4383(Top 196%)
Half13.11 mi0.68 mi4569+114264+114264+114756(Top 18%)4418(Top 29%)4418(Top 197%)
25K15.53 mi2.42 mi4458+1114171+934171+934144(Top 16%)3884(Top 26%)3884(Top 173%)
30K18.64 mi3.11 mi4619-1614308-1374308-1375078(Top 19%)4664(Top 31%)4664(Top 208%)
20M20.00 mi1.36 mi4763-1444430-1224430-1226003(Top 23%)5288(Top 35%)5288(Top 236%)
21M21.00 mi1.00 mi4914-1514558-1284558-1287198(Top 27%)5976(Top 39%)5976(Top 267%)
35K21.75 mi0.75 mi4770+1444435+1234435+1232372(Top 9%)2252(Top 15%)2252(Top 100%)
23M23.00 mi1.25 mi4673+974344+914344+913596(Top 14%)3335(Top 22%)3335(Top 149%)
24M24.00 mi1.00 mi4610+634292+524292+524103(Top 15%)3734(Top 25%)3734(Top 167%)
40K24.85 mi0.85 mi4700-904359-674359-677782(Top 29%)6096(Top 40%)6096(Top 272%)
25.2M25.20 mi0.35 mi4730-304382-234382-237938(Top 30%)6098(Top 40%)6098(Top 272%)
Finish26.22 mi1.02 mi4769-394405-234405-237254(Top 27%)5709(Top 38%)5709(Top 255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5328

Males

4920

M40-44

4920

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5319

Males

4914

M40-44

4914

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5328

Males

4920

M40-44

4920

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4711

Males

4383

M40-44

4383

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4756

Males

4418

M40-44

4418

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4144

Males

3884

M40-44

3884

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5078

Males

4664

M40-44

4664

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6003

Males

5288

M40-44

5288

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7198

Males

5976

M40-44

5976

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2372

Males

2252

M40-44

2252

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3596

Males

3335

M40-44

3335

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4103

Males

3734

M40-44

3734

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7782

Males

6096

M40-44

6096

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7938

Males

6098

M40-44

6098

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7254

Males

5709

M40-44

5709

Passing Analysis

Category:
Athletes Passed
857
Passed By
2484
Net Change
-1627
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3142
5K → 10K91054-1045#3142#4187
10K → 15K50412-362#4187#4549
15K → 20K88119-31#4549#4580
20K → Half2716+11#4580#4569
Half → 25K14029+111#4569#4458
25K → 30K81242-161#4458#4619
30K → 20M35179-144#4619#4763
20M → 21M19170-151#4763#4914
21M → 35K1462+144#4914#4770
35K → 23M11720+97#4770#4673
23M → 24M7613+63#4673#4610
24M → 40K18108-90#4610#4700
40K → 25.2M1343-30#4700#4730
25.2M → Finish3877-39#4730#4769
TOTALS8572484-1627
📊

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