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BOSTON MARATHON 2023

James Ellis

Bib: 31625•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:57/mi
24:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:07/mi
1:10:04
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:32:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:38:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:55
↑ 66↓ 880.2%
30K· 18.64 mi
8:17/mi
2:22:40
↑ 181↓ 1480.2%
20M
8:14/mi
2:33:51
↑ 64↓ 500.2%
21M
9:20/mi
2:43:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:49:13
↑ 17↓ 861.7%
23M
8:27/mi
2:59:48
↑ 23↓ 630.6%
24M
8:36/mi
3:08:24
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:15:44
↓ 200.3%
25.2M
9:25/mi
3:18:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:27:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:23
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:49:01
Pace8:19 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5224:437:5724:43
7:57
-
10K
6.21 mi12:09:0547:567:4323:13
7:28
-0:29
15K
9.32 mi12:31:131:10:047:3122:08
7:07
-0:21
20K
12.43 mi12:54:021:32:537:2822:49
7:21
+0:14
Half
13.11 mi12:59:321:38:237:305:30
8:04
+0:43
25K
15.53 mi13:18:041:56:557:3218:32
7:39
-0:25
30K
18.64 mi13:43:492:22:407:3925:45
8:17
+0:38
20M
20.00 mi13:55:002:33:517:4211:11
8:14
-0:03
21M
21.00 mi14:04:202:43:117:469:20
9:20
+1:06
35K
21.75 mi14:10:222:49:137:476:02
8:04
-1:16
23M
23.00 mi14:20:572:59:487:4910:35
8:27
+0:23
24M
24.00 mi14:29:333:08:247:518:36
8:36
+0:09
40K
24.85 mi14:36:533:15:447:537:20
8:35
-0:01
25.2M
25.20 mi14:40:083:18:597:543:15
9:25
+0:50
Finish
26.22 mi14:48:333:27:247:558:25
8:16
-1:09

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

7:07 /mi

Average Pace

7:55 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:42

42% of race

Time at Steady Pace

1:32:11

44% of race

Time at Slower Pace

28:31

14% of race

Average Pace: 7:55 /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 mi11:45:5224:437:5724:43
7:57
#13671
10K
6.21 mi12:09:0547:567:4323:13
7:28
#11939
15K
9.32 mi12:31:131:10:047:3122:08
7:07
#10213
20K
12.43 mi12:54:021:32:537:2822:49
7:21
#9604
Half
13.11 mi12:59:321:38:237:305:30
8:04
#9889
25K
15.53 mi13:18:041:56:557:3218:32
7:39
#9868
30K
18.64 mi13:43:492:22:407:3925:45
8:17
#10381
20M
20.00 mi13:55:002:33:517:4211:11
8:14
#10497
21M
21.00 mi14:04:202:43:117:469:20
9:20
#10777
35K
21.75 mi14:10:222:49:137:476:02
8:04
#10821
23M
23.00 mi14:20:572:59:487:4910:35
8:27
#10931
24M
24.00 mi14:29:333:08:247:518:36
8:36
#11157
40K
24.85 mi14:36:533:15:447:537:20
8:35
#11250
25.2M
25.20 mi14:40:083:18:597:543:15
9:25
#11330
Finish
26.22 mi14:48:333:27:247:558:25
8:16
#11426
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi13671982298227317(Top 27%)6472(Top 43%)6472(Top 122%)
10K6.21 mi3.10 mi11939+17329081+7419081+74110234(Top 38%)8296(Top 55%)8296(Top 157%)
15K9.32 mi3.11 mi10213+17268282+7998282+7997317(Top 27%)6472(Top 43%)6472(Top 122%)
20K12.43 mi3.11 mi9604+6097921+3617921+3618110(Top 30%)6962(Top 46%)6962(Top 132%)
Half13.11 mi0.68 mi9889-2858091-1708091-17014770(Top 55%)10187(Top 67%)10187(Top 193%)
25K15.53 mi2.42 mi9868+218063+288063+289873(Top 37%)7915(Top 52%)7915(Top 150%)
30K18.64 mi3.11 mi10381-5138275-2128275-21212942(Top 49%)9203(Top 61%)9203(Top 174%)
20M20.00 mi1.36 mi10497-1168315-408315-4011867(Top 45%)8652(Top 57%)8652(Top 164%)
21M21.00 mi1.00 mi10777-2808421-1068421-10615140(Top 57%)9975(Top 66%)9975(Top 189%)
35K21.75 mi0.75 mi10821-448422-18422-112536(Top 47%)8787(Top 58%)8787(Top 166%)
23M23.00 mi1.25 mi10931-1108450-288450-2812906(Top 48%)8868(Top 58%)8868(Top 168%)
24M24.00 mi1.00 mi11157-2268535-858535-8515022(Top 56%)9753(Top 64%)9753(Top 185%)
40K24.85 mi0.85 mi11250-938552-178552-1713788(Top 52%)9141(Top 60%)9141(Top 173%)
25.2M25.20 mi0.35 mi11330-808585-338585-3314740(Top 55%)9544(Top 63%)9544(Top 181%)
Finish26.22 mi1.02 mi11426-968601-168601-1613811(Top 52%)9152(Top 60%)9152(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7317

Males

6472

M18-39

6472

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10234

Males

8296

M18-39

8296

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7317

Males

6472

M18-39

6472

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8110

Males

6962

M18-39

6962

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14770

Males

10187

M18-39

10187

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9873

Males

7915

M18-39

7915

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12942

Males

9203

M18-39

9203

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

11867

Males

8652

M18-39

8652

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15140

Males

9975

M18-39

9975

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12536

Males

8787

M18-39

8787

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

12906

Males

8868

M18-39

8868

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15022

Males

9753

M18-39

9753

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13788

Males

9141

M18-39

9141

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14740

Males

9544

M18-39

9544

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13811

Males

9152

M18-39

9152

Passing Analysis

Category:
Athletes Passed
4553*
Passed By
2306
Net Change
+2245
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13671
5K → 10K175018+1732#13671#11939
10K → 15K17304+1726#11939#10213
15K → 20K614*5+609#10213#9604
20K → Half0285-285#9604#9889
Half → 25K12199+21#9889#9868
25K → 30K62574-513#9868#10381
30K → 20M42*158-116#10381#10497
20M → 21M22302-280#10497#10777
21M → 35K3781-44#10777#10821
35K → 23M53163-110#10821#10931
23M → 24M28254-226#10931#11157
24M → 40K32125-93#11157#11250
40K → 25.2M1595-80#11250#11330
25.2M → Finish47143-96#11330#11426
TOTALS4553*2306+2245

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

📊

Passing Visuals

Category:
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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