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BOSTON MARATHON 2023

James Townley

Bib: 3424•M

NE

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Male)
#0 / 15176
Top 40%
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
7:30/mi
23:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
46:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:09:17
↑ 67↓ 78
20K· 12.43 mi
7:24/mi
1:32:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:37:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:56:03
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:20:00
↑ 181↓ 1480.2%
20M
7:36/mi
2:30:19
↑ 64↓ 500.2%
21M
7:54/mi
2:38:13
↑ 106↓ 241.6%
35K· 21.75 mi
6:45/mi
2:43:16
↑ 17↓ 861.7%
23M
6:50/mi
2:51:49
↑ 23↓ 630.6%
24M
6:18/mi
2:58:07
↓ 821.3%
40K· 24.85 mi
6:24/mi
3:03:35
↓ 200.3%
25.2M
7:00/mi
3:06:00
↑ 13↓ 160.2%
Finish· 26.22 mi
6:02/mi
3:12:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:24
Pace7:26 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:45
Pace7:14 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0123:197:3023:19
7:30
-
10K
6.21 mi10:48:0046:187:2722:59
7:24
-0:06
15K
9.32 mi11:10:591:09:177:2622:59
7:24
0:00
20K
12.43 mi11:33:591:32:177:2623:00
7:24
0:00
Half
13.11 mi11:39:061:37:247:265:07
7:30
+0:06
25K
15.53 mi11:57:451:56:037:2818:39
7:42
+0:12
30K
18.64 mi12:21:422:20:007:3123:57
7:43
+0:01
20M
20.00 mi12:32:012:30:197:3110:19
7:36
-0:07
21M
21.00 mi12:39:552:38:137:327:54
7:54
+0:18
35K
21.75 mi12:44:582:43:167:305:03
6:45
-1:09
23M
23.00 mi12:53:312:51:497:288:33
6:50
+0:05
24M
24.00 mi12:59:492:58:077:256:18
6:18
-0:32
40K
24.85 mi13:05:173:03:357:235:28
6:24
+0:06
25.2M
25.20 mi13:07:423:06:007:232:25
7:00
+0:36
Finish
26.22 mi13:13:513:12:097:206:09
6:02
-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

6:02 /mi

Average Pace

7:20 /mi

Slowest Pace

7:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:56

18% of race

Time at Steady Pace

1:47:43

56% of race

Time at Slower Pace

50:30

26% of race

Average Pace: 7:20 /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 mi10:25:0123:197:3023:19
7:30
#9658
10K
6.21 mi10:48:0046:187:2722:59
7:24
#9580
15K
9.32 mi11:10:591:09:177:2622:59
7:24
#9448
20K
12.43 mi11:33:591:32:177:2623:00
7:24
#9190
Half
13.11 mi11:39:061:37:247:265:07
7:30
#9240
25K
15.53 mi11:57:451:56:037:2818:39
7:42
#9396
30K
18.64 mi12:21:422:20:007:3123:57
7:43
#9228
20M
20.00 mi12:32:012:30:197:3110:19
7:36
#9064
21M
21.00 mi12:39:552:38:137:327:54
7:54
#8917
35K
21.75 mi12:44:582:43:167:305:03
6:45
#8689
23M
23.00 mi12:53:312:51:497:288:33
6:50
#8228
24M
24.00 mi12:59:492:58:077:256:18
6:18
#7800
40K
24.85 mi13:05:173:03:357:235:28
6:24
#7442
25.2M
25.20 mi13:07:423:06:007:232:25
7:00
#7320
Finish
26.22 mi13:13:513:12:097:206:09
6:02
#6939
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi9658795779579287(Top 35%)7723(Top 51%)7723(Top 146%)
10K6.21 mi3.10 mi9580+787921+367921+369580(Top 36%)7908(Top 52%)7908(Top 150%)
15K9.32 mi3.11 mi9448+1327838+837838+839287(Top 35%)7723(Top 51%)7723(Top 146%)
20K12.43 mi3.11 mi9190+2587668+1707668+1708518(Top 32%)7202(Top 47%)7202(Top 136%)
Half13.11 mi0.68 mi9240-507689-217689-2110142(Top 38%)8154(Top 54%)8154(Top 154%)
25K15.53 mi2.42 mi9396-1567774-857774-8510215(Top 38%)8104(Top 53%)8104(Top 153%)
30K18.64 mi3.11 mi9228+1687643+1317643+1318686(Top 33%)7083(Top 47%)7083(Top 134%)
20M20.00 mi1.36 mi9064+1647520+1237520+1237411(Top 28%)6216(Top 41%)6216(Top 118%)
21M21.00 mi1.00 mi8917+1477413+1077413+1076714(Top 25%)5683(Top 37%)5683(Top 108%)
35K21.75 mi0.75 mi8689+2287259+1547259+1543921(Top 15%)3615(Top 24%)3615(Top 68%)
23M23.00 mi1.25 mi8228+4616947+3126947+3122848(Top 11%)2664(Top 18%)2664(Top 50%)
24M24.00 mi1.00 mi7800+4286657+2906657+2901364(Top 5%)1292(Top 9%)1292(Top 24%)
40K24.85 mi0.85 mi7442+3586398+2596398+2591206(Top 5%)1141(Top 8%)1141(Top 22%)
25.2M25.20 mi0.35 mi7320+1226318+806318+801831(Top 7%)1724(Top 11%)1724(Top 33%)
Finish26.22 mi1.02 mi6939+3816040+2786040+278837(Top 3%)803(Top 5%)803(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9287

Males

7723

M18-39

7723

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9580

Males

7908

M18-39

7908

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9287

Males

7723

M18-39

7723

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8518

Males

7202

M18-39

7202

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10142

Males

8154

M18-39

8154

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10215

Males

8104

M18-39

8104

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8686

Males

7083

M18-39

7083

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7411

Males

6216

M18-39

6216

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6714

Males

5683

M18-39

5683

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

3921

Males

3615

M18-39

3615

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

2848

Males

2664

M18-39

2664

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1364

Males

1292

M18-39

1292

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1206

Males

1141

M18-39

1141

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1831

Males

1724

M18-39

1724

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

837

Males

803

M18-39

803

Passing Analysis

Category:
Athletes Passed
3499*
Passed By
780
Net Change
+2719
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9658
5K → 10K339261+78#9658#9580
10K → 15K23098+132#9580#9448
15K → 20K29133+258#9448#9190
20K → Half1060-50#9190#9240
Half → 25K69225-156#9240#9396
25K → 30K250*82+168#9396#9228
30K → 20M1728+164#9228#9064
20M → 21M16013+147#9064#8917
21M → 35K2280+228#8917#8689
35K → 23M4610+461#8689#8228
23M → 24M4280+428#8228#7800
24M → 40K3580+358#7800#7442
40K → 25.2M1220+122#7442#7320
25.2M → Finish3810+381#7320#6939
TOTALS3499*780+2719

* 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