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BOSTON MARATHON 2023

John Atwood

Bib: 13695•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M45-49)
#0 / 2252
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
7:42/mi
23:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
47:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:10:43
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:34:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:39:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:57:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:21:43
↑ 181↓ 1480.2%
20M
7:40/mi
2:32:08
↑ 64↓ 500.2%
21M
7:51/mi
2:39:59
↑ 106↓ 241.6%
35K· 21.75 mi
7:29/mi
2:45:35
↑ 17↓ 861.7%
23M
7:44/mi
2:55:16
↑ 23↓ 630.6%
24M
7:44/mi
3:03:00
↓ 821.3%
40K· 24.85 mi
7:44/mi
3:09:37
↓ 200.3%
25.2M
8:10/mi
3:12:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:20:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:20
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:40:41
Pace7:41 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3523:567:4223:56
7:42
-
10K
6.21 mi11:15:5947:207:3723:24
7:32
-0:10
15K
9.32 mi11:39:221:10:437:3523:23
7:32
0:00
20K
12.43 mi12:02:541:34:157:3523:32
7:34
+0:02
Half
13.11 mi12:07:591:39:207:355:05
7:27
-0:07
25K
15.53 mi12:26:251:57:467:3518:26
7:36
+0:09
30K
18.64 mi12:50:222:21:437:3623:57
7:43
+0:07
20M
20.00 mi13:00:472:32:087:3610:25
7:40
-0:03
21M
21.00 mi13:08:382:39:597:377:51
7:51
+0:11
35K
21.75 mi13:14:142:45:357:375:36
7:29
-0:22
23M
23.00 mi13:23:552:55:167:379:41
7:44
+0:15
24M
24.00 mi13:31:393:03:007:387:44
7:44
0:00
40K
24.85 mi13:38:163:09:377:386:37
7:44
0:00
25.2M
25.20 mi13:41:053:12:267:382:49
8:10
+0:26
Finish
26.22 mi13:48:403:20:017:387:35
7:26
-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

7:26 /mi

Average Pace

7:38 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09:21

95% of race

Time at Steady Pace

10:40

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /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 mi10:52:3523:567:4223:56
7:42
#11504
10K
6.21 mi11:15:5947:207:3723:24
7:32
#11093
15K
9.32 mi11:39:221:10:437:3523:23
7:32
#10821
20K
12.43 mi12:02:541:34:157:3523:32
7:34
#10568
Half
13.11 mi12:07:591:39:207:355:05
7:27
#10520
25K
15.53 mi12:26:251:57:467:3518:26
7:36
#10324
30K
18.64 mi12:50:222:21:437:3623:57
7:43
#9992
20M
20.00 mi13:00:472:32:087:3610:25
7:40
#9789
21M
21.00 mi13:08:382:39:597:377:51
7:51
#9578
35K
21.75 mi13:14:142:45:357:375:36
7:29
#9524
23M
23.00 mi13:23:552:55:167:379:41
7:44
#9376
24M
24.00 mi13:31:393:03:007:387:44
7:44
#9343
40K
24.85 mi13:38:163:09:377:386:37
7:44
#9278
25.2M
25.20 mi13:41:053:12:267:382:49
8:10
#9247
Finish
26.22 mi13:48:403:20:017:387:35
7:26
#9196
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi115048889888910411(Top 39%)8359(Top 55%)8359(Top 371%)
10K6.21 mi3.10 mi11093+4118701+1888701+18810743(Top 40%)8546(Top 56%)8546(Top 379%)
15K9.32 mi3.11 mi10821+2728559+1428559+14210411(Top 39%)8359(Top 55%)8359(Top 371%)
20K12.43 mi3.11 mi10568+2538443+1168443+1169929(Top 37%)8028(Top 53%)8028(Top 356%)
Half13.11 mi0.68 mi10520+488427+168427+169918(Top 37%)8032(Top 53%)8032(Top 357%)
25K15.53 mi2.42 mi10324+1968300+1278300+1279591(Top 36%)7751(Top 51%)7751(Top 344%)
30K18.64 mi3.11 mi9992+3328089+2118089+2118726(Top 33%)7108(Top 47%)7108(Top 316%)
20M20.00 mi1.36 mi9789+2037950+1397950+1397979(Top 30%)6571(Top 43%)6571(Top 292%)
21M21.00 mi1.00 mi9578+2117809+1417809+1416491(Top 24%)5533(Top 36%)5533(Top 246%)
35K21.75 mi0.75 mi9524+547755+547755+548521(Top 32%)6796(Top 45%)6796(Top 302%)
23M23.00 mi1.25 mi9376+1487642+1137642+1138000(Top 30%)6399(Top 42%)6399(Top 284%)
24M24.00 mi1.00 mi9343+337600+427600+429368(Top 35%)7066(Top 47%)7066(Top 314%)
40K24.85 mi0.85 mi9278+657528+727528+728308(Top 31%)6414(Top 42%)6414(Top 285%)
25.2M25.20 mi0.35 mi9247+317498+307498+307645(Top 29%)5926(Top 39%)5926(Top 263%)
Finish26.22 mi1.02 mi9196+517448+507448+508156(Top 31%)6230(Top 41%)6230(Top 277%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10411

Males

8359

M45-49

8359

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10743

Males

8546

M45-49

8546

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10411

Males

8359

M45-49

8359

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

9929

Males

8028

M45-49

8028

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9918

Males

8032

M45-49

8032

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9591

Males

7751

M45-49

7751

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8726

Males

7108

M45-49

7108

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7979

Males

6571

M45-49

6571

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6491

Males

5533

M45-49

5533

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8521

Males

6796

M45-49

6796

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8000

Males

6399

M45-49

6399

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9368

Males

7066

M45-49

7066

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8308

Males

6414

M45-49

6414

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7645

Males

5926

M45-49

5926

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8156

Males

6230

M45-49

6230

Passing Analysis

Category:
Athletes Passed
2833*
Passed By
525
Net Change
+2308
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11504
5K → 10K551140+411#11504#11093
10K → 15K33967+272#11093#10821
15K → 20K31259+253#10821#10568
20K → Half5911+48#10568#10520
Half → 25K23842+196#10520#10324
25K → 30K362*30+332#10324#9992
30K → 20M2096+203#9992#9789
20M → 21M2165+211#9789#9578
21M → 35K7622+54#9578#9524
35K → 23M16416+148#9524#9376
23M → 24M7845+33#9376#9343
24M → 40K10540+65#9343#9278
40K → 25.2M4312+31#9278#9247
25.2M → Finish8130+51#9247#9196
TOTALS2833*525+2308

* 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