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BOSTON MARATHON 2023

Jeff Jamison

Bib: 11913•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 39%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 43%
Division (M50-54)
#0 / 2052
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:05
Rank: #11915
Start → 5K
24:05 | 7:45/mi
10K· 6.21 mi
47:40
Rank: #11529 (+386)
5K → 10K
23:35 | 7:35/mi
15K· 9.32 mi
1:10:30
Rank: #10608 (+921)
10K → 15K
22:50 | 7:21/mi
20K· 12.43 mi
1:33:26
Rank: #9996 (+612)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:38:28
Rank: #9947 (+49)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:56:41
Rank: #9745 (+202)
Half → 25K
18:13 | 7:31/mi
30K· 18.64 mi
2:20:47
Rank: #9606 (+139)
25K → 30K
24:06 | 7:45/mi
20M
2:31:41
Rank: #9626 (-20)
30K → 20M
10:54 | 8:01/mi
21M
2:40:10
Rank: #9651 (-25)
20M → 21M
8:29 | 8:29/mi
35K· 21.75 mi
2:46:05
Rank: #9697 (-46)
21M → 35K
5:55 | 7:55/mi
23M
2:56:37
Rank: #9834 (-137)
35K → 23M
10:32 | 8:25/mi
24M
3:04:53
Rank: #9966 (-132)
23M → 24M
8:16 | 8:16/mi
40K· 24.85 mi
3:12:08
Rank: #10077 (-111)
24M → 40K
7:15 | 8:29/mi
25.2M
3:15:21
Rank: #10143 (-66)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:23:47
Rank: #10295 (-152)
25.2M → Finish
8:26 | 8:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:28
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:45:19
Pace8:02 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0224:057:4524:05
7:45
-
10K
6.21 mi11:14:3747:407:4023:35
7:35
-0:10
15K
9.32 mi11:37:271:10:307:3422:50
7:21
-0:14
20K
12.43 mi12:00:231:33:267:3122:56
7:23
+0:02
Half
13.11 mi12:05:251:38:287:315:02
7:23
0:00
25K
15.53 mi12:23:381:56:417:3118:13
7:31
+0:08
30K
18.64 mi12:47:442:20:477:3324:06
7:45
+0:14
20M
20.00 mi12:58:382:31:417:3510:54
8:01
+0:16
21M
21.00 mi13:07:072:40:107:388:29
8:29
+0:28
35K
21.75 mi13:13:022:46:057:385:55
7:55
-0:34
23M
23.00 mi13:23:342:56:377:4110:32
8:25
+0:30
24M
24.00 mi13:31:503:04:537:428:16
8:16
-0:09
40K
24.85 mi13:39:053:12:087:447:15
8:29
+0:13
25.2M
25.20 mi13:42:183:15:217:453:13
9:20
+0:51
Finish
26.22 mi13:50:443:23:477:478:26
8:17
-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

7:21 /mi

Average Pace

7:47 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:36

45% of race

Time at Steady Pace

1:05:00

32% of race

Time at Slower Pace

46:11

23% of race

Average Pace: 7:46 /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 mi10:51:0224:057:4524:05
7:45
#11915
10K
6.21 mi11:14:3747:407:4023:35
7:35
#11529
15K
9.32 mi11:37:271:10:307:3422:50
7:21
#10608
20K
12.43 mi12:00:231:33:267:3122:56
7:23
#9996
Half
13.11 mi12:05:251:38:287:315:02
7:23
#9947
25K
15.53 mi12:23:381:56:417:3118:13
7:31
#9745
30K
18.64 mi12:47:442:20:477:3324:06
7:45
#9606
20M
20.00 mi12:58:382:31:417:3510:54
8:01
#9626
21M
21.00 mi13:07:072:40:107:388:29
8:29
#9651
35K
21.75 mi13:13:022:46:057:385:55
7:55
#9697
23M
23.00 mi13:23:342:56:377:4110:32
8:25
#9834
24M
24.00 mi13:31:503:04:537:428:16
8:16
#9966
40K
24.85 mi13:39:053:12:087:447:15
8:29
#10077
25.2M
25.20 mi13:42:183:15:217:453:13
9:20
#10143
Finish
26.22 mi13:50:443:23:477:478:26
8:17
#10295
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11915907290728928(Top 34%)7497(Top 49%)7497(Top 365%)
10K6.21 mi3.10 mi11529+3868894+1788894+17811225(Top 42%)8763(Top 58%)8763(Top 427%)
15K9.32 mi3.11 mi10608+9218470+4248470+4248928(Top 34%)7497(Top 49%)7497(Top 365%)
20K12.43 mi3.11 mi9996+6128150+3208150+3208373(Top 31%)7116(Top 47%)7116(Top 347%)
Half13.11 mi0.68 mi9947+498119+318119+319232(Top 35%)7667(Top 51%)7667(Top 374%)
25K15.53 mi2.42 mi9745+2027995+1247995+1248883(Top 33%)7363(Top 49%)7363(Top 359%)
30K18.64 mi3.11 mi9606+1397875+1207875+1209031(Top 34%)7300(Top 48%)7300(Top 356%)
20M20.00 mi1.36 mi9626-207852+237852+2310404(Top 39%)7962(Top 52%)7962(Top 388%)
21M21.00 mi1.00 mi9651-257855-37855-310370(Top 39%)7790(Top 51%)7790(Top 380%)
35K21.75 mi0.75 mi9697-467864-97864-911415(Top 43%)8305(Top 55%)8305(Top 405%)
23M23.00 mi1.25 mi9834-1377901-377901-3712636(Top 47%)8745(Top 58%)8745(Top 426%)
24M24.00 mi1.00 mi9966-1327937-367937-3613019(Top 49%)8854(Top 58%)8854(Top 431%)
40K24.85 mi0.85 mi10077-1117969-327969-3213162(Top 49%)8847(Top 58%)8847(Top 431%)
25.2M25.20 mi0.35 mi10143-667998-297998-2914233(Top 53%)9326(Top 61%)9326(Top 454%)
Finish26.22 mi1.02 mi10295-1528039-418039-4113915(Top 52%)9202(Top 61%)9202(Top 448%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

8928

Males

7497

M50-54

7497

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11225

Males

8763

M50-54

8763

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

8928

Males

7497

M50-54

7497

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8373

Males

7116

M50-54

7116

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9232

Males

7667

M50-54

7667

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8883

Males

7363

M50-54

7363

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9031

Males

7300

M50-54

7300

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10404

Males

7962

M50-54

7962

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10370

Males

7790

M50-54

7790

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11415

Males

8305

M50-54

8305

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12636

Males

8745

M50-54

8745

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13019

Males

8854

M50-54

8854

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13162

Males

8847

M50-54

8847

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14233

Males

9326

M50-54

9326

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13915

Males

9202

M50-54

9202

Passing Analysis

Category:
Athletes Passed
2954*
Passed By
1332
Net Change
+1620
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11915
5K → 10K543157+386#11915#11529
10K → 15K93514+921#11529#10608
15K → 20K617*5+612#10608#9996
20K → Half556+49#9996#9947
Half → 25K227*25+202#9947#9745
25K → 30K230*91+139#9745#9606
30K → 20M83103-20#9606#9626
20M → 21M6590-25#9626#9651
21M → 35K2672-46#9651#9697
35K → 23M55192-137#9697#9834
23M → 24M37168-132#9834#9966
24M → 40K32142-111#9966#10077
40K → 25.2M19*85-66#10077#10143
25.2M → Finish30182-152#10143#10295
TOTALS2954*1332+1620

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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