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BOSTON MARATHON 2023

Jason Fambrough

Bib: 373•M

KS

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Division (M18-39)
#0 / 5285
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
16:58
Rank: #115
Start → 5K
16:58 | 5:28/mi
10K· 6.21 mi
33:47
Rank: #100 (+15)
5K → 10K
16:49 | 5:25/mi
15K· 9.32 mi
51:07
Rank: #114 (-14)
10K → 15K
17:20 | 5:35/mi
20K· 12.43 mi
1:08:36
Rank: #120 (-6)
15K → 20K
17:29 | 5:38/mi
Half· 13.11 mi
1:12:23
Rank: #123 (-3)
20K → Half
3:47 | 5:33/mi
25K· 15.53 mi
1:26:57
Rank: #155 (-32)
Half → 25K
14:34 | 6:00/mi
30K· 18.64 mi
1:46:17
Rank: #191 (-36)
25K → 30K
19:20 | 6:13/mi
20M
1:54:33
Rank: #196 (-5)
30K → 20M
8:16 | 6:05/mi
21M
2:01:12
Rank: #228 (-32)
20M → 21M
6:39 | 6:39/mi
35K· 21.75 mi
2:05:48
Rank: #246 (-18)
21M → 35K
4:36 | 6:09/mi
23M
2:13:29
Rank: #243 (+3)
35K → 23M
7:41 | 6:08/mi
24M
2:19:43
Rank: #256 (-13)
23M → 24M
6:14 | 6:14/mi
40K· 24.85 mi
2:25:40
Rank: #280 (-24)
24M → 40K
5:57 | 6:58/mi
25.2M
2:27:59
Rank: #281 (-1)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:34:05
Rank: #278 (+3)
25.2M → Finish
6:06 | 5:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:12:23
Pace5:31 /mi
2nd Half
Distance13.11 mi
Time1:21:42
Pace6:14 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:0316:585:2816:58
5:28
-
10K
6.21 mi10:33:5233:475:2616:49
5:25
-0:03
15K
9.32 mi10:51:1251:075:2917:20
5:35
+0:10
20K
12.43 mi11:08:411:08:365:3117:29
5:38
+0:03
Half
13.11 mi11:12:281:12:235:313:47
5:33
-0:05
25K
15.53 mi11:27:021:26:575:3614:34
6:00
+0:27
30K
18.64 mi11:46:221:46:175:4219:20
6:13
+0:13
20M
20.00 mi11:54:381:54:335:448:16
6:05
-0:08
21M
21.00 mi12:01:172:01:125:466:39
6:39
+0:34
35K
21.75 mi12:05:532:05:485:474:36
6:09
-0:30
23M
23.00 mi12:13:342:13:295:487:41
6:08
-0:01
24M
24.00 mi12:19:482:19:435:496:14
6:14
+0:06
40K
24.85 mi12:25:452:25:405:525:57
6:58
+0:44
25.2M
25.20 mi12:28:042:27:595:522:19
6:43
-0:15
Finish
26.22 mi12:34:102:34:055:536:06
5:59
-0:44

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

5:25 /mi

Average Pace

5:53 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:23

47% of race

Time at Steady Pace

1:06:47

43% of race

Time at Slower Pace

14:55

10% of race

Average Pace: 5:53 /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 mi10:17:0316:585:2816:58
5:28
#115
10K
6.21 mi10:33:5233:475:2616:49
5:25
#100
15K
9.32 mi10:51:1251:075:2917:20
5:35
#114
20K
12.43 mi11:08:411:08:365:3117:29
5:38
#120
Half
13.11 mi11:12:281:12:235:313:47
5:33
#123
25K
15.53 mi11:27:021:26:575:3614:34
6:00
#155
30K
18.64 mi11:46:221:46:175:4219:20
6:13
#191
20M
20.00 mi11:54:381:54:335:448:16
6:05
#196
21M
21.00 mi12:01:172:01:125:466:39
6:39
#228
35K
21.75 mi12:05:532:05:485:474:36
6:09
#246
23M
23.00 mi12:13:342:13:295:487:41
6:08
#243
24M
24.00 mi12:19:482:19:435:496:14
6:14
#256
40K
24.85 mi12:25:452:25:405:525:57
6:58
#280
25.2M
25.20 mi12:28:042:27:595:522:19
6:43
#281
Finish
26.22 mi12:34:102:34:055:536:06
5:59
#278
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi115115115151(Top 0.6%)126(Top 0.8%)126(Top 2%)
10K6.21 mi3.10 mi100+15100+15100+1592(Top 0.3%)92(Top 0.6%)92(Top 2%)
15K9.32 mi3.11 mi114-14103-3103-3151(Top 0.6%)126(Top 0.8%)126(Top 2%)
20K12.43 mi3.11 mi120-6104-1104-1153(Top 0.6%)131(Top 0.9%)131(Top 2%)
Half13.11 mi0.68 mi123-3105-1105-1158(Top 0.6%)138(Top 0.9%)138(Top 3%)
25K15.53 mi2.42 mi155-32134-29134-29548(Top 2%)509(Top 3%)509(Top 10%)
30K18.64 mi3.11 mi191-36168-34168-34726(Top 3%)689(Top 5%)689(Top 13%)
20M20.00 mi1.36 mi196-5173-5173-5451(Top 2%)417(Top 3%)417(Top 8%)
21M21.00 mi1.00 mi228-32203-30203-30955(Top 4%)907(Top 6%)907(Top 17%)
35K21.75 mi0.75 mi246-18220-17220-171044(Top 4%)992(Top 7%)992(Top 19%)
23M23.00 mi1.25 mi243+3217+3217+3508(Top 2%)477(Top 3%)477(Top 9%)
24M24.00 mi1.00 mi256-13230-13230-131097(Top 4%)1038(Top 7%)1038(Top 20%)
40K24.85 mi0.85 mi280-24252-22252-223582(Top 13%)3246(Top 21%)3246(Top 61%)
25.2M25.20 mi0.35 mi281-1253-1253-1888(Top 3%)844(Top 6%)844(Top 16%)
Finish26.22 mi1.02 mi278+3250+3250+3677(Top 3%)646(Top 4%)646(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.6%
×21stories
+97ft-345ft

Overall

151

Males

126

M18-39

126

5K→10K

3.1 - 6.2 mi

Top 0.3%
×5stories
+79ft-138ft

Overall

92

Males

92

M18-39

92

10K→15K

6.2 - 9.3 mi

Top 0.6%
×3stories
+67ft-78ft

Overall

151

Males

126

M18-39

126

15K→20K

9.3 - 12.4 mi

Top 0.6%
×5stories
+106ft-86ft

Overall

153

Males

131

M18-39

131

20K→Half

12.4 - 13.1 mi

Top 0.6%
×2stories
+19ft-37ft

Overall

158

Males

138

M18-39

138

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

548

Males

509

M18-39

509

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

726

Males

689

M18-39

689

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

451

Males

417

M18-39

417

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

955

Males

907

M18-39

907

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1044

Males

992

M18-39

992

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

508

Males

477

M18-39

477

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1097

Males

1038

M18-39

1038

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3582

Males

3246

M18-39

3246

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

888

Males

844

M18-39

844

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

677

Males

646

M18-39

646

Passing Analysis

Category:
Athletes Passed
48
Passed By
211
Net Change
-163
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#115
5K → 10K172+15#115#100
10K → 15K216-14#100#114
15K → 20K28-6#114#120
20K → Half14-3#120#123
Half → 25K133-32#123#155
25K → 30K036-36#155#191
30K → 20M16-5#191#196
20M → 21M234-32#196#228
21M → 35K119-18#228#246
35K → 23M85+3#246#243
23M → 24M215-13#243#256
24M → 40K226-24#256#280
40K → 25.2M23-1#280#281
25.2M → Finish74+3#281#278
TOTALS48211-163
📊

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