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BOSTON MARATHON 2023

Joseph Mckellar

Bib: 4508•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Masters (Masters Men)
#0 / 9891
Top 7%
Division (M40-44)
#0 / 2241
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #4160
Start → 5K
6:45/mi
20:59 split
10K· 6.21 mi
41:52
Rank: #4346 (-186)
5K → 10K
6:43/mi
20:53 split
15K· 9.32 mi
1:02:37
Rank: #4184 (+162)
10K → 15K
6:41/mi
20:45 split
20K· 12.43 mi
1:23:35
Rank: #4120 (+64)
15K → 20K
6:45/mi
20:58 split
Half· 13.11 mi
1:28:05
Rank: #4061 (+59)
20K → Half
6:36/mi
4:30 split
25K· 15.53 mi
1:44:24
Rank: #3966 (+95)
Half → 25K
6:44/mi
16:19 split
30K· 18.64 mi
2:05:22
Rank: #3652 (+314)
25K → 30K
6:45/mi
20:58 split
20M
2:14:31
Rank: #3500 (+152)
30K → 20M
6:44/mi
9:09 split
21M
2:21:33
Rank: #3361 (+139)
20M → 21M
7:02/mi
7:02 split
35K· 21.75 mi
2:26:18
Rank: #3276 (+85)
21M → 35K
6:21/mi
4:45 split
23M
2:34:46
Rank: #3192 (+84)
35K → 23M
6:46/mi
8:28 split
24M
2:41:17
Rank: #3113 (+79)
23M → 24M
6:31/mi
6:31 split
40K· 24.85 mi
2:46:53
Rank: #3005 (+108)
24M → 40K
6:33/mi
5:36 split
25.2M
2:49:19
Rank: #2962 (+43)
40K → 25.2M
7:03/mi
2:26 split
Finish· 26.22 mi
2:55:54
Rank: #2902 (+60)
25.2M → Finish
6:28/mi
6:35 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:05
Pace6:43 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:49
Pace6:42 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0220:596:4520:59
6:45
-
10K
6.21 mi10:43:5541:526:4420:53
6:43
-0:02
15K
9.32 mi11:04:401:02:376:4320:45
6:41
-0:02
20K
12.43 mi11:25:381:23:356:4420:58
6:45
+0:04
Half
13.11 mi11:30:081:28:056:434:30
6:36
-0:09
25K
15.53 mi11:46:271:44:246:4316:19
6:44
+0:08
30K
18.64 mi12:07:252:05:226:4420:58
6:45
+0:01
20M
20.00 mi12:16:342:14:316:449:09
6:44
-0:01
21M
21.00 mi12:23:362:21:336:447:02
7:02
+0:18
35K
21.75 mi12:28:212:26:186:444:45
6:21
-0:41
23M
23.00 mi12:36:492:34:466:448:28
6:46
+0:25
24M
24.00 mi12:43:202:41:176:436:31
6:31
-0:15
40K
24.85 mi12:48:562:46:536:435:36
6:33
+0:02
25.2M
25.20 mi12:51:222:49:196:432:26
7:03
+0:30
Finish
26.22 mi12:57:572:55:546:436:35
6:28
-0:35

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

6:21 /mi

Average Pace

6:43 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:26

95% of race

Time at Steady Pace

9:28

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi10:23:0220:596:4520:59
6:45
#4160
10K
6.21 mi10:43:5541:526:4420:53
6:43
#4346
15K
9.32 mi11:04:401:02:376:4320:45
6:41
#4184
20K
12.43 mi11:25:381:23:356:4420:58
6:45
#4120
Half
13.11 mi11:30:081:28:056:434:30
6:36
#4061
25K
15.53 mi11:46:271:44:246:4316:19
6:44
#3966
30K
18.64 mi12:07:252:05:226:4420:58
6:45
#3652
20M
20.00 mi12:16:342:14:316:449:09
6:44
#3500
21M
21.00 mi12:23:362:21:336:447:02
7:02
#3361
35K
21.75 mi12:28:212:26:186:444:45
6:21
#3276
23M
23.00 mi12:36:492:34:466:448:28
6:46
#3192
24M
24.00 mi12:43:202:41:176:436:31
6:31
#3113
40K
24.85 mi12:48:562:46:536:435:36
6:33
#3005
25.2M
25.20 mi12:51:222:49:196:432:26
7:03
#2962
Finish
26.22 mi12:57:572:55:546:436:35
6:28
#2902
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4160389638963907(Top 15%)3671(Top 24%)3671(Top 164%)
10K6.21 mi3.10 mi4346-1864070-1744070-1744537(Top 17%)4234(Top 28%)4234(Top 189%)
15K9.32 mi3.11 mi4184+1623923+1473923+1473907(Top 15%)3671(Top 24%)3671(Top 164%)
20K12.43 mi3.11 mi4120+643867+563867+563948(Top 15%)3714(Top 24%)3714(Top 166%)
Half13.11 mi0.68 mi4061+593812+553812+553357(Top 13%)3188(Top 21%)3188(Top 142%)
25K15.53 mi2.42 mi3966+953734+783734+783582(Top 13%)3377(Top 22%)3377(Top 151%)
30K18.64 mi3.11 mi3652+3143452+2823452+2822683(Top 10%)2547(Top 17%)2547(Top 114%)
20M20.00 mi1.36 mi3500+1523310+1423310+1422452(Top 9%)2327(Top 15%)2327(Top 104%)
21M21.00 mi1.00 mi3361+1393182+1283182+1282304(Top 9%)2177(Top 14%)2177(Top 97%)
35K21.75 mi0.75 mi3276+853102+803102+801783(Top 7%)1696(Top 11%)1696(Top 76%)
23M23.00 mi1.25 mi3192+843026+763026+762451(Top 9%)2303(Top 15%)2303(Top 103%)
24M24.00 mi1.00 mi3113+792951+752951+752172(Top 8%)2038(Top 13%)2038(Top 91%)
40K24.85 mi0.85 mi3005+1082848+1032848+1031748(Top 7%)1646(Top 11%)1646(Top 73%)
25.2M25.20 mi0.35 mi2962+432807+412807+411943(Top 7%)1826(Top 12%)1826(Top 81%)
Finish26.22 mi1.02 mi2902+602750+572750+572295(Top 9%)2123(Top 14%)2123(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3907

Males

3671

M40-44

3671

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4537

Males

4234

M40-44

4234

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3907

Males

3671

M40-44

3671

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3948

Males

3714

M40-44

3714

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3357

Males

3188

M40-44

3188

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3582

Males

3377

M40-44

3377

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2683

Males

2547

M40-44

2547

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2452

Males

2327

M40-44

2327

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2304

Males

2177

M40-44

2177

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1783

Males

1696

M40-44

1696

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2451

Males

2303

M40-44

2303

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2172

Males

2038

M40-44

2038

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1748

Males

1646

M40-44

1646

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1943

Males

1826

M40-44

1826

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2295

Males

2123

M40-44

2123

Passing Analysis

Category:
Athletes Passed
1816
Passed By
558
Net Change
+1258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4160
5K → 10K143329-186#4160#4346
10K → 15K21856+162#4346#4184
15K → 20K12864+64#4184#4120
20K → Half623+59#4120#4061
Half → 25K12934+95#4061#3966
25K → 30K32511+314#3966#3652
30K → 20M1553+152#3652#3500
20M → 21M1478+139#3500#3361
21M → 35K861+85#3361#3276
35K → 23M10218+84#3276#3192
23M → 24M889+79#3192#3113
24M → 40K1124+108#3113#3005
40K → 25.2M496+43#3005#2962
25.2M → Finish7212+60#2962#2902
TOTALS1816558+1258
📊

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