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BOSTON MARATHON 2023

Todd Oswald

Bib: 27279•M

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
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
10:50/mi
33:39
↑ 97↓ 3451.5%
10K· 6.21 mi
11:40/mi
1:09:54
↑ 79↓ 1380.4%
15K· 9.32 mi
11:05/mi
1:44:20
↑ 67↓ 78
20K· 12.43 mi
11:59/mi
2:21:33
↑ 106↓ 860.1%
Half· 13.11 mi
11:32/mi
2:29:25
↑ 19↓ 370.5%
25K· 15.53 mi
11:45/mi
2:57:54
↑ 66↓ 880.2%
30K· 18.64 mi
12:02/mi
3:35:17
↑ 181↓ 1480.2%
20M
11:29/mi
3:50:53
↑ 64↓ 500.2%
21M
12:23/mi
4:03:16
↑ 106↓ 241.6%
35K· 21.75 mi
13:11/mi
4:13:08
↑ 17↓ 861.7%
23M
12:04/mi
4:28:15
↑ 23↓ 630.6%
24M
12:25/mi
4:40:40
↓ 821.3%
40K· 24.85 mi
12:18/mi
4:51:11
↓ 200.3%
25.2M
12:40/mi
4:55:33
↑ 13↓ 160.2%
Finish· 26.22 mi
10:56/mi
5:06:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:29:25
Pace11:24 /mi
2nd Half
Distance13.11 mi
Time2:37:16
Pace12:00 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0133:3910:5033:39
10:50
-
10K
6.21 mi12:27:161:09:5411:1536:15
11:40
+0:50
15K
9.32 mi13:01:421:44:2011:1234:26
11:05
-0:35
20K
12.43 mi13:38:552:21:3311:2337:13
11:59
+0:54
Half
13.11 mi13:46:472:29:2511:247:52
11:32
-0:27
25K
15.53 mi14:15:162:57:5411:2728:29
11:45
+0:13
30K
18.64 mi14:52:393:35:1711:3337:23
12:02
+0:17
20M
20.00 mi15:08:153:50:5311:3315:36
11:29
-0:33
21M
21.00 mi15:20:384:03:1611:3512:23
12:23
+0:54
35K
21.75 mi15:30:304:13:0811:389:52
13:11
+0:48
23M
23.00 mi15:45:374:28:1511:4015:07
12:04
-1:07
24M
24.00 mi15:58:024:40:4011:4212:25
12:25
+0:21
40K
24.85 mi16:08:334:51:1111:4310:31
12:18
-0:07
25.2M
25.20 mi16:12:554:55:3311:444:22
12:40
+0:22
Finish
26.22 mi16:24:035:06:4111:4211:08
10:56
-1:44

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

10:50 /mi

Average Pace

11:42 /mi

Slowest Pace

13:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:41

33% of race

Time at Steady Pace

2:44:58

54% of race

Time at Slower Pace

39:02

13% of race

Average Pace: 11:42 /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 mi11:51:0133:3910:5033:39
10:50
#25419
10K
6.21 mi12:27:161:09:5411:1536:15
11:40
#25864
15K
9.32 mi13:01:421:44:2011:1234:26
11:05
#25692
20K
12.43 mi13:38:552:21:3311:2337:13
11:59
#25694
Half
13.11 mi13:46:472:29:2511:247:52
11:32
#25684
25K
15.53 mi14:15:162:57:5411:2728:29
11:45
#25556
30K
18.64 mi14:52:393:35:1711:3337:23
12:02
#25371
20M
20.00 mi15:08:153:50:5311:3315:36
11:29
#25272
21M
21.00 mi15:20:384:03:1611:3512:23
12:23
#25183
35K
21.75 mi15:30:304:13:0811:389:52
13:11
#25223
23M
23.00 mi15:45:374:28:1511:4015:07
12:04
#25174
24M
24.00 mi15:58:024:40:4011:4212:25
12:25
#25178
40K
24.85 mi16:08:334:51:1111:4310:31
12:18
#25154
25.2M
25.20 mi16:12:554:55:3311:444:22
12:40
#25140
Finish
26.22 mi16:24:035:06:4111:4211:08
10:56
#25105
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi25419147181471825300(Top 95%)14648(Top 97%)14648(Top 650%)
10K6.21 mi3.10 mi25864-44514885-16714885-16726085(Top 98%)14965(Top 99%)14965(Top 665%)
15K9.32 mi3.11 mi25692+17214820+6514820+6525300(Top 95%)14648(Top 97%)14648(Top 650%)
20K12.43 mi3.11 mi25694-214805+1514805+1525643(Top 96%)14769(Top 97%)14769(Top 656%)
Half13.11 mi0.68 mi25684+1014799+614799+625509(Top 96%)14692(Top 97%)14692(Top 652%)
25K15.53 mi2.42 mi25556+12814743+5614743+5624930(Top 94%)14431(Top 95%)14431(Top 641%)
30K18.64 mi3.11 mi25371+18514649+9414649+9424535(Top 92%)14210(Top 94%)14210(Top 631%)
20M20.00 mi1.36 mi25272+9914605+4414605+4423494(Top 88%)13687(Top 90%)13687(Top 608%)
21M21.00 mi1.00 mi25183+8914558+4714558+4723307(Top 88%)13580(Top 89%)13580(Top 603%)
35K21.75 mi0.75 mi25223-4014567-914567-925698(Top 97%)14684(Top 97%)14684(Top 652%)
23M23.00 mi1.25 mi25174+4914534+3314534+3324107(Top 91%)13899(Top 92%)13899(Top 617%)
24M24.00 mi1.00 mi25178-414529+514529+524964(Top 94%)14282(Top 94%)14282(Top 634%)
40K24.85 mi0.85 mi25154+2414518+1114518+1124231(Top 91%)13911(Top 92%)13911(Top 618%)
25.2M25.20 mi0.35 mi25140+1414510+814510+823528(Top 88%)13571(Top 89%)13571(Top 603%)
Finish26.22 mi1.02 mi25105+3514487+2314487+2323833(Top 90%)13737(Top 91%)13737(Top 610%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

25300

Males

14648

M45-49

14648

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

26085

Males

14965

M45-49

14965

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

25300

Males

14648

M45-49

14648

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25643

Males

14769

M45-49

14769

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25509

Males

14692

M45-49

14692

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

24930

Males

14431

M45-49

14431

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24535

Males

14210

M45-49

14210

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23494

Males

13687

M45-49

13687

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23307

Males

13580

M45-49

13580

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25698

Males

14684

M45-49

14684

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24107

Males

13899

M45-49

13899

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

24964

Males

14282

M45-49

14282

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24231

Males

13911

M45-49

13911

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23528

Males

13571

M45-49

13571

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

23833

Males

13737

M45-49

13737

Passing Analysis

Category:
Athletes Passed
1011
Passed By
697
Net Change
+314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25419
5K → 10K22467-445#25419#25864
10K → 15K19119+172#25864#25692
15K → 20K7981-2#25692#25694
20K → Half2212+10#25694#25684
Half → 25K1357+128#25684#25556
25K → 30K1949+185#25556#25371
30K → 20M1012+99#25371#25272
20M → 21M945+89#25272#25183
21M → 35K1252-40#25183#25223
35K → 23M6011+49#25223#25174
23M → 24M1721-4#25174#25178
24M → 40K306+24#25178#25154
40K → 25.2M162+14#25154#25140
25.2M → Finish383+35#25140#25105
TOTALS1011697+314
📊

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