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BOSTON MARATHON 2023

Jim David

Bib: 17418•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:00
Rank: #14327
Start → 5K
25:00 | 8:03/mi
10K· 6.21 mi
49:19
Rank: #13874 (+453)
5K → 10K
24:19 | 7:50/mi
15K· 9.32 mi
1:13:59
Rank: #13880 (-6)
10K → 15K
24:40 | 7:56/mi
20K· 12.43 mi
1:39:23
Rank: #14076 (-196)
15K → 20K
25:24 | 8:11/mi
Half· 13.11 mi
1:44:49
Rank: #14082 (-6)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:04:49
Rank: #14150 (-68)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:31:20
Rank: #14230 (-80)
25K → 30K
26:31 | 8:32/mi
20M
2:42:51
Rank: #14170 (+60)
30K → 20M
11:31 | 8:28/mi
21M
2:51:38
Rank: #14010 (+160)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
2:57:46
Rank: #13966 (+44)
21M → 35K
6:08 | 8:12/mi
23M
3:08:22
Rank: #13881 (+85)
35K → 23M
10:36 | 8:28/mi
24M
3:16:34
Rank: #13803 (+78)
23M → 24M
8:12 | 8:12/mi
40K· 24.85 mi
3:23:40
Rank: #13727 (+76)
24M → 40K
7:06 | 8:18/mi
25.2M
3:26:42
Rank: #13668 (+59)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:34:41
Rank: #13546 (+122)
25.2M → Finish
7:59 | 7:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:49
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:49:52
Pace8:23 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4725:008:0325:00
8:03
-
10K
6.21 mi11:40:0649:197:5624:19
7:50
-0:13
15K
9.32 mi12:04:461:13:597:5624:40
7:56
+0:06
20K
12.43 mi12:30:101:39:238:0025:24
8:11
+0:15
Half
13.11 mi12:35:361:44:498:005:26
7:58
-0:13
25K
15.53 mi12:55:362:04:498:0220:00
8:15
+0:17
30K
18.64 mi13:22:072:31:208:0726:31
8:32
+0:17
20M
20.00 mi13:33:382:42:518:0911:31
8:28
-0:04
21M
21.00 mi13:42:252:51:388:108:47
8:47
+0:19
35K
21.75 mi13:48:332:57:468:106:08
8:12
-0:35
23M
23.00 mi13:59:093:08:228:1110:36
8:28
+0:16
24M
24.00 mi14:07:213:16:348:118:12
8:12
-0:16
40K
24.85 mi14:14:273:23:408:127:06
8:18
+0:06
25.2M
25.20 mi14:17:293:26:428:123:02
8:48
+0:30
Finish
26.22 mi14:25:283:34:418:127:59
7:50
-0:58

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

7:50 /mi

Average Pace

8:12 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:52

94% of race

Time at Steady Pace

11:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:11 /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 mi11:15:4725:008:0325:00
8:03
#14327
10K
6.21 mi11:40:0649:197:5624:19
7:50
#13874
15K
9.32 mi12:04:461:13:597:5624:40
7:56
#13880
20K
12.43 mi12:30:101:39:238:0025:24
8:11
#14076
Half
13.11 mi12:35:361:44:498:005:26
7:58
#14082
25K
15.53 mi12:55:362:04:498:0220:00
8:15
#14150
30K
18.64 mi13:22:072:31:208:0726:31
8:32
#14230
20M
20.00 mi13:33:382:42:518:0911:31
8:28
#14170
21M
21.00 mi13:42:252:51:388:108:47
8:47
#14010
35K
21.75 mi13:48:332:57:468:106:08
8:12
#13966
23M
23.00 mi13:59:093:08:228:1110:36
8:28
#13881
24M
24.00 mi14:07:213:16:348:118:12
8:12
#13803
40K
24.85 mi14:14:273:23:408:127:06
8:18
#13727
25.2M
25.20 mi14:17:293:26:428:123:02
8:48
#13668
Finish
26.22 mi14:25:283:34:418:127:59
7:50
#13546
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14327100811008113894(Top 52%)9852(Top 65%)9852(Top 693%)
10K6.21 mi3.10 mi13874+4539888+1939888+19313351(Top 50%)9701(Top 64%)9701(Top 682%)
15K9.32 mi3.11 mi13880-69877+119877+1113894(Top 52%)9852(Top 65%)9852(Top 693%)
20K12.43 mi3.11 mi14076-1969927-509927-5014774(Top 55%)10184(Top 67%)10184(Top 716%)
Half13.11 mi0.68 mi14082-69932-59932-514020(Top 53%)9903(Top 65%)9903(Top 696%)
25K15.53 mi2.42 mi14150-689936-49936-414564(Top 55%)9984(Top 66%)9984(Top 702%)
30K18.64 mi3.11 mi14230-809929+79929+714512(Top 55%)9861(Top 65%)9861(Top 693%)
20M20.00 mi1.36 mi14170+609879+509879+5013470(Top 51%)9341(Top 62%)9341(Top 657%)
21M21.00 mi1.00 mi14010+1609801+789801+7812148(Top 46%)8653(Top 57%)8653(Top 609%)
35K21.75 mi0.75 mi13966+449773+289773+2813383(Top 50%)9158(Top 60%)9158(Top 644%)
23M23.00 mi1.25 mi13881+859711+629711+6212977(Top 49%)8904(Top 59%)8904(Top 626%)
24M24.00 mi1.00 mi13803+789648+639648+6312576(Top 47%)8666(Top 57%)8666(Top 609%)
40K24.85 mi0.85 mi13727+769611+379611+3712046(Top 45%)8343(Top 55%)8343(Top 587%)
25.2M25.20 mi0.35 mi13668+599581+309581+3011279(Top 42%)7942(Top 52%)7942(Top 559%)
Finish26.22 mi1.02 mi13546+1229514+679514+6710933(Top 41%)7770(Top 51%)7770(Top 546%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13894

Males

9852

M55-59

9852

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13351

Males

9701

M55-59

9701

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13894

Males

9852

M55-59

9852

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14774

Males

10184

M55-59

10184

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14020

Males

9903

M55-59

9903

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14564

Males

9984

M55-59

9984

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14512

Males

9861

M55-59

9861

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13470

Males

9341

M55-59

9341

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12148

Males

8653

M55-59

8653

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13383

Males

9158

M55-59

9158

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

12977

Males

8904

M55-59

8904

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12576

Males

8666

M55-59

8666

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12046

Males

8343

M55-59

8343

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11279

Males

7942

M55-59

7942

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10933

Males

7770

M55-59

7770

Passing Analysis

Category:
Athletes Passed
2130
Passed By
1349
Net Change
+781
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14327
5K → 10K592139+453#14327#13874
10K → 15K176182-6#13874#13880
15K → 20K136332-196#13880#14076
20K → Half3238-6#14076#14082
Half → 25K119187-68#14082#14150
25K → 30K170250-80#14150#14230
30K → 20M10747+60#14230#14170
20M → 21M18222+160#14170#14010
21M → 35K7430+44#14010#13966
35K → 23M12742+85#13966#13881
23M → 24M10931+78#13881#13803
24M → 40K9822+76#13803#13727
40K → 25.2M7314+59#13727#13668
25.2M → Finish13513+122#13668#13546
TOTALS21301349+781
📊

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