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BOSTON MARATHON 2023

Jeff Stoltz

Bib: 6375•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 42%
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
23:49
Rank: #11135
Start → 5K
23:49 | 7:40/mi
10K· 6.21 mi
47:16
Rank: #10964 (+171)
5K → 10K
23:27 | 7:33/mi
15K· 9.32 mi
1:10:30
Rank: #10607 (+357)
10K → 15K
23:14 | 7:29/mi
20K· 12.43 mi
1:33:45
Rank: #10228 (+379)
15K → 20K
23:15 | 7:29/mi
Half· 13.11 mi
1:38:43
Rank: #10102 (+126)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:57:00
Rank: #9901 (+201)
Half → 25K
18:17 | 7:32/mi
30K· 18.64 mi
2:21:25
Rank: #9869 (+32)
25K → 30K
24:25 | 7:52/mi
20M
2:32:10
Rank: #9800 (+69)
30K → 20M
10:45 | 7:55/mi
21M
2:40:35
Rank: #9783 (+17)
20M → 21M
8:25 | 8:25/mi
35K· 21.75 mi
2:46:33
Rank: #9858 (-75)
21M → 35K
5:58 | 7:59/mi
23M
2:56:51
Rank: #9913 (-55)
35K → 23M
10:18 | 8:14/mi
24M
3:04:45
Rank: #9920 (-7)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
3:11:36
Rank: #9901 (+19)
24M → 40K
6:51 | 8:01/mi
25.2M
3:14:42
Rank: #9931 (-30)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:22:54
Rank: #10018 (-87)
25.2M → Finish
8:12 | 8:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:43
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:44:11
Pace7:57 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:2623:497:4023:49
7:40
-
10K
6.21 mi10:50:5347:167:3623:27
7:33
-0:07
15K
9.32 mi11:14:071:10:307:3423:14
7:29
-0:04
20K
12.43 mi11:37:221:33:457:3323:15
7:29
0:00
Half
13.11 mi11:42:201:38:437:324:58
7:17
-0:12
25K
15.53 mi12:00:371:57:007:3218:17
7:32
+0:15
30K
18.64 mi12:25:022:21:257:3524:25
7:52
+0:20
20M
20.00 mi12:35:472:32:107:3610:45
7:55
+0:03
21M
21.00 mi12:44:122:40:357:398:25
8:25
+0:30
35K
21.75 mi12:50:102:46:337:395:58
7:59
-0:26
23M
23.00 mi13:00:282:56:517:4110:18
8:14
+0:15
24M
24.00 mi13:08:223:04:457:427:54
7:54
-0:20
40K
24.85 mi13:15:133:11:367:436:51
8:01
+0:07
25.2M
25.20 mi13:18:193:14:427:443:06
8:59
+0:58
Finish
26.22 mi13:26:313:22:547:458:12
8:03
-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

7:17 /mi

Average Pace

7:45 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:00

58% of race

Time at Steady Pace

1:04:05

32% of race

Time at Slower Pace

21:49

11% of race

Average Pace: 7:44 /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 mi10:27:2623:497:4023:49
7:40
#11135
10K
6.21 mi10:50:5347:167:3623:27
7:33
#10964
15K
9.32 mi11:14:071:10:307:3423:14
7:29
#10607
20K
12.43 mi11:37:221:33:457:3323:15
7:29
#10228
Half
13.11 mi11:42:201:38:437:324:58
7:17
#10102
25K
15.53 mi12:00:371:57:007:3218:17
7:32
#9901
30K
18.64 mi12:25:022:21:257:3524:25
7:52
#9869
20M
20.00 mi12:35:472:32:107:3610:45
7:55
#9800
21M
21.00 mi12:44:122:40:357:398:25
8:25
#9783
35K
21.75 mi12:50:102:46:337:395:58
7:59
#9858
23M
23.00 mi13:00:282:56:517:4110:18
8:14
#9913
24M
24.00 mi13:08:223:04:457:427:54
7:54
#9920
40K
24.85 mi13:15:133:11:367:436:51
8:01
#9901
25.2M
25.20 mi13:18:193:14:427:443:06
8:59
#9931
Finish
26.22 mi13:26:313:22:547:458:12
8:03
#10018
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi11135872187219992(Top 38%)8144(Top 54%)8144(Top 363%)
10K6.21 mi3.10 mi10964+1718645+768645+7610845(Top 41%)8600(Top 57%)8600(Top 384%)
15K9.32 mi3.11 mi10607+3578469+1768469+1769992(Top 38%)8144(Top 54%)8144(Top 363%)
20K12.43 mi3.11 mi10228+3798274+1958274+1959184(Top 34%)7613(Top 50%)7613(Top 340%)
Half13.11 mi0.68 mi10102+1268206+688206+688448(Top 32%)7187(Top 47%)7187(Top 321%)
25K15.53 mi2.42 mi9901+2018076+1308076+1309083(Top 34%)7492(Top 49%)7492(Top 334%)
30K18.64 mi3.11 mi9869+328023+538023+539812(Top 37%)7728(Top 51%)7728(Top 345%)
20M20.00 mi1.36 mi9800+697959+647959+649619(Top 36%)7535(Top 50%)7535(Top 336%)
21M21.00 mi1.00 mi9783+177926+337926+339947(Top 37%)7576(Top 50%)7576(Top 338%)
35K21.75 mi0.75 mi9858-757948-227948-2211892(Top 45%)8503(Top 56%)8503(Top 379%)
23M23.00 mi1.25 mi9913-557946+27946+211344(Top 43%)8145(Top 54%)8145(Top 363%)
24M24.00 mi1.00 mi9920-77915+317915+3110496(Top 39%)7651(Top 50%)7651(Top 341%)
40K24.85 mi0.85 mi9901+197874+417874+4110106(Top 38%)7387(Top 49%)7387(Top 330%)
25.2M25.20 mi0.35 mi9931-307871+37871+312363(Top 46%)8426(Top 56%)8426(Top 376%)
Finish26.22 mi1.02 mi10018-877902-317902-3112407(Top 47%)8475(Top 56%)8475(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

9992

Males

8144

M40-44

8144

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10845

Males

8600

M40-44

8600

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

9992

Males

8144

M40-44

8144

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9184

Males

7613

M40-44

7613

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8448

Males

7187

M40-44

7187

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9083

Males

7492

M40-44

7492

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9812

Males

7728

M40-44

7728

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9619

Males

7535

M40-44

7535

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9947

Males

7576

M40-44

7576

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11892

Males

8503

M40-44

8503

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11344

Males

8145

M40-44

8145

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10496

Males

7651

M40-44

7651

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10106

Males

7387

M40-44

7387

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12363

Males

8426

M40-44

8426

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12407

Males

8475

M40-44

8475

Passing Analysis

Category:
Athletes Passed
2237*
Passed By
1118
Net Change
+1117
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11135
5K → 10K396225+171#11135#10964
10K → 15K40952+357#10964#10607
15K → 20K395*16+379#10607#10228
20K → Half129*3+126#10228#10102
Half → 25K233*32+201#10102#9901
25K → 30K171*139+32#9901#9869
30K → 20M11546+69#9869#9800
20M → 21M8770+17#9800#9783
21M → 35K2499-75#9783#9858
35K → 23M64119-55#9858#9913
23M → 24M7480-7#9913#9920
24M → 40K7657+19#9920#9901
40K → 25.2M2151-30#9901#9931
25.2M → Finish43129-87#9931#10018
TOTALS2237*1118+1117

* 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