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BOSTON MARATHON 2023

Jim Barnard

Bib: 27592•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:08
Rank: #21743
Start → 5K
29:08 | 9:23/mi
10K· 6.21 mi
56:25
Rank: #20979 (+764)
5K → 10K
27:17 | 8:47/mi
15K· 9.32 mi
1:23:38
Rank: #20450 (+529)
10K → 15K
27:13 | 8:46/mi
20K· 12.43 mi
1:51:41
Rank: #20304 (+146)
15K → 20K
28:03 | 9:02/mi
Half· 13.11 mi
1:57:53
Rank: #20327 (-23)
20K → Half
6:12 | 9:05/mi
25K· 15.53 mi
2:20:13
Rank: #20251 (+76)
Half → 25K
22:20 | 9:13/mi
30K· 18.64 mi
2:50:33
Rank: #20274 (-23)
25K → 30K
30:20 | 9:46/mi
20M
3:04:54
Rank: #20417 (-143)
30K → 20M
14:21 | 10:34/mi
21M
3:15:28
Rank: #20355 (+62)
20M → 21M
10:34 | 10:34/mi
35K· 21.75 mi
3:23:13
Rank: #20430 (-75)
21M → 35K
7:45 | 10:22/mi
23M
3:38:40
Rank: #20821 (-391)
35K → 23M
15:27 | 12:20/mi
24M
3:52:48
Rank: #21372 (-551)
23M → 24M
14:08 | 14:08/mi
40K· 24.85 mi
4:04:42
Rank: #21721 (-349)
24M → 40K
11:54 | 13:55/mi
25.2M
4:08:36
Rank: #21715 (+6)
40K → 25.2M
3:54 | 11:19/mi
Finish· 26.22 mi
4:18:56
Rank: #21728 (-13)
25.2M → Finish
10:20 | 10:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:53
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:21:03
Pace10:46 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5829:089:2329:08
9:23
-
10K
6.21 mi12:15:1556:259:0527:17
8:47
-0:36
15K
9.32 mi12:42:281:23:388:5827:13
8:46
-0:01
20K
12.43 mi13:10:311:51:418:5928:03
9:02
+0:16
Half
13.11 mi13:16:431:57:539:006:12
9:05
+0:03
25K
15.53 mi13:39:032:20:139:0222:20
9:13
+0:08
30K
18.64 mi14:09:232:50:339:0930:20
9:46
+0:33
20M
20.00 mi14:23:443:04:549:1514:21
10:34
+0:48
21M
21.00 mi14:34:183:15:289:1810:34
10:34
0:00
35K
21.75 mi14:42:033:23:139:217:45
10:22
-0:12
23M
23.00 mi14:57:303:38:409:3015:27
12:20
+1:58
24M
24.00 mi15:11:383:52:489:4214:08
14:08
+1:48
40K
24.85 mi15:23:324:04:429:5111:54
13:55
-0:13
25.2M
25.20 mi15:27:264:08:369:523:54
11:19
-2:36
Finish
26.22 mi15:37:464:18:569:5310:20
10:08
-1:11

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

8:46 /mi

Average Pace

9:53 /mi

Slowest Pace

14:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:05

43% of race

Time at Steady Pace

1:42:28

40% of race

Time at Slower Pace

45:23

18% of race

Average Pace: 9:53 /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 mi11:47:5829:089:2329:08
9:23
#21743
10K
6.21 mi12:15:1556:259:0527:17
8:47
#20979
15K
9.32 mi12:42:281:23:388:5827:13
8:46
#20450
20K
12.43 mi13:10:311:51:418:5928:03
9:02
#20304
Half
13.11 mi13:16:431:57:539:006:12
9:05
#20327
25K
15.53 mi13:39:032:20:139:0222:20
9:13
#20251
30K
18.64 mi14:09:232:50:339:0930:20
9:46
#20274
20M
20.00 mi14:23:443:04:549:1514:21
10:34
#20417
21M
21.00 mi14:34:183:15:289:1810:34
10:34
#20355
35K
21.75 mi14:42:033:23:139:217:45
10:22
#20430
23M
23.00 mi14:57:303:38:409:3015:27
12:20
#20821
24M
24.00 mi15:11:383:52:489:4214:08
14:08
#21372
40K
24.85 mi15:23:324:04:429:5111:54
13:55
#21721
25.2M
25.20 mi15:27:264:08:369:523:54
11:19
#21715
Finish
26.22 mi15:37:464:18:569:5310:20
10:08
#21728
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21743129601296019296(Top 72%)12012(Top 79%)12012(Top 536%)
10K6.21 mi3.10 mi20979+76412646+31412646+31419837(Top 75%)12218(Top 81%)12218(Top 545%)
15K9.32 mi3.11 mi20450+52912442+20412442+20419296(Top 72%)12012(Top 79%)12012(Top 536%)
20K12.43 mi3.11 mi20304+14612394+4812394+4819833(Top 74%)12240(Top 81%)12240(Top 546%)
Half13.11 mi0.68 mi20327-2312406-1212406-1220781(Top 78%)12648(Top 83%)12648(Top 564%)
25K15.53 mi2.42 mi20251+7612386+2012386+2019897(Top 75%)12243(Top 81%)12243(Top 546%)
30K18.64 mi3.11 mi20274-2312369+1712369+1720340(Top 76%)12358(Top 81%)12358(Top 551%)
20M20.00 mi1.36 mi20417-14312422-5312422-5321887(Top 82%)12947(Top 85%)12947(Top 578%)
21M21.00 mi1.00 mi20355+6212382+4012382+4019774(Top 74%)11942(Top 79%)11942(Top 533%)
35K21.75 mi0.75 mi20430-7512407-2512407-2522112(Top 83%)12972(Top 85%)12972(Top 579%)
23M23.00 mi1.25 mi20821-39112568-16112568-16124406(Top 92%)14039(Top 93%)14039(Top 626%)
24M24.00 mi1.00 mi21372-55112806-23812806-23826119(Top 98%)14876(Top 98%)14876(Top 664%)
40K24.85 mi0.85 mi21721-34912953-14712953-14725636(Top 96%)14621(Top 96%)14621(Top 652%)
25.2M25.20 mi0.35 mi21715+612947+612947+621123(Top 79%)12443(Top 82%)12443(Top 555%)
Finish26.22 mi1.02 mi21728-1312952-512952-522121(Top 83%)12920(Top 85%)12920(Top 577%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19296

Males

12012

M40-44

12012

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

19837

Males

12218

M40-44

12218

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19296

Males

12012

M40-44

12012

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19833

Males

12240

M40-44

12240

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

20781

Males

12648

M40-44

12648

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

19897

Males

12243

M40-44

12243

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20340

Males

12358

M40-44

12358

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21887

Males

12947

M40-44

12947

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19774

Males

11942

M40-44

11942

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

22112

Males

12972

M40-44

12972

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

24406

Males

14039

M40-44

14039

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26119

Males

14876

M40-44

14876

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25636

Males

14621

M40-44

14621

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21123

Males

12443

M40-44

12443

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

22121

Males

12920

M40-44

12920

Passing Analysis

Category:
Athletes Passed
2169
Passed By
2154
Net Change
+15
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21743
5K → 10K81854+764#21743#20979
10K → 15K55627+529#20979#20450
15K → 20K24397+146#20450#20304
20K → Half2447-23#20304#20327
Half → 25K16690+76#20327#20251
25K → 30K141164-23#20251#20274
30K → 20M40183-143#20274#20417
20M → 21M9937+62#20417#20355
21M → 35K26101-75#20355#20430
35K → 23M8399-391#20430#20821
23M → 24M3554-551#20821#21372
24M → 40K1350-349#21372#21721
40K → 25.2M1913+6#21721#21715
25.2M → Finish2538-13#21715#21728
TOTALS21692154+15
📊

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