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BOSTON MARATHON 2023

Thomas Mast

Bib: 13936•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 19%
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
7:54/mi
24:34
↑ 97↓ 3451.5%
10K· 6.21 mi
8:10/mi
49:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:14:54
↑ 67↓ 78
20K· 12.43 mi
8:03/mi
1:39:56
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:45:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:05:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:11/mi
2:30:31
↑ 181↓ 1480.2%
20M
8:03/mi
2:41:28
↑ 64↓ 500.2%
21M
8:24/mi
2:49:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
2:55:52
↑ 17↓ 861.7%
23M
8:18/mi
3:06:16
↑ 23↓ 630.6%
24M
8:13/mi
3:14:29
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:21:32
↓ 200.3%
25.2M
8:42/mi
3:24:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:32:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:25
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:47:17
Pace8:11 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0124:347:5424:34
7:54
-
10K
6.21 mi11:18:2449:578:0225:23
8:10
+0:16
15K
9.32 mi11:43:211:14:548:0224:57
8:02
-0:08
20K
12.43 mi12:08:231:39:568:0225:02
8:03
+0:01
Half
13.11 mi12:13:521:45:258:025:29
8:02
-0:01
25K
15.53 mi12:33:342:05:078:0319:42
8:08
+0:06
30K
18.64 mi12:58:582:30:318:0425:24
8:11
+0:03
20M
20.00 mi13:09:552:41:288:0410:57
8:03
-0:08
21M
21.00 mi13:18:192:49:528:058:24
8:24
+0:21
35K
21.75 mi13:24:192:55:528:056:00
8:01
-0:23
23M
23.00 mi13:34:433:06:168:0610:24
8:18
+0:17
24M
24.00 mi13:42:563:14:298:068:13
8:13
-0:05
40K
24.85 mi13:49:593:21:328:077:03
8:15
+0:02
25.2M
25.20 mi13:52:593:24:328:073:00
8:42
+0:27
Finish
26.22 mi14:01:093:32:428:078:10
8:01
-0:41

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

7:54 /mi

Average Pace

8:07 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:42

99% of race

Time at Steady Pace

3:00

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi10:53:0124:347:5424:34
7:54
#13290
10K
6.21 mi11:18:2449:578:0225:23
8:10
#14653
15K
9.32 mi11:43:211:14:548:0224:57
8:02
#14615
20K
12.43 mi12:08:231:39:568:0225:02
8:03
#14401
Half
13.11 mi12:13:521:45:258:025:29
8:02
#14430
25K
15.53 mi12:33:342:05:078:0319:42
8:08
#14299
30K
18.64 mi12:58:582:30:318:0425:24
8:11
#13880
20M
20.00 mi13:09:552:41:288:0410:57
8:03
#13616
21M
21.00 mi13:18:192:49:528:058:24
8:24
#13359
35K
21.75 mi13:24:192:55:528:056:00
8:01
#13302
23M
23.00 mi13:34:433:06:168:0610:24
8:18
#13179
24M
24.00 mi13:42:563:14:298:068:13
8:13
#13145
40K
24.85 mi13:49:593:21:328:077:03
8:15
#13063
25.2M
25.20 mi13:52:593:24:328:073:00
8:42
#13023
Finish
26.22 mi14:01:093:32:428:078:10
8:01
#12977
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi132909669966914625(Top 55%)10144(Top 67%)10144(Top 914%)
10K6.21 mi3.10 mi14653-136310193-52410193-52416031(Top 60%)10716(Top 71%)10716(Top 965%)
15K9.32 mi3.11 mi14615+3810171+2210171+2214625(Top 55%)10144(Top 67%)10144(Top 914%)
20K12.43 mi3.11 mi14401+21410066+10510066+10513889(Top 52%)9829(Top 65%)9829(Top 885%)
Half13.11 mi0.68 mi14430-2910078-1210078-1214603(Top 55%)10123(Top 67%)10123(Top 912%)
25K15.53 mi2.42 mi14299+1319999+799999+7913652(Top 51%)9621(Top 63%)9621(Top 867%)
30K18.64 mi3.11 mi13880+4199795+2049795+20412159(Top 46%)8868(Top 58%)8868(Top 799%)
20M20.00 mi1.36 mi13616+2649671+1249671+12410703(Top 40%)8114(Top 53%)8114(Top 731%)
21M21.00 mi1.00 mi13359+2579554+1179554+1179850(Top 37%)7536(Top 50%)7536(Top 679%)
35K21.75 mi0.75 mi13302+579513+419513+4112248(Top 46%)8666(Top 57%)8666(Top 781%)
23M23.00 mi1.25 mi13179+1239441+729441+7211916(Top 45%)8434(Top 56%)8434(Top 760%)
24M24.00 mi1.00 mi13145+349391+509391+5012715(Top 48%)8730(Top 58%)8730(Top 786%)
40K24.85 mi0.85 mi13063+829335+569335+5611653(Top 44%)8155(Top 54%)8155(Top 735%)
25.2M25.20 mi0.35 mi13023+409306+299306+2910728(Top 40%)7685(Top 51%)7685(Top 692%)
Finish26.22 mi1.02 mi12977+469273+339273+3312212(Top 46%)8387(Top 55%)8387(Top 756%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14625

Males

10144

M60-64

10144

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

16031

Males

10716

M60-64

10716

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14625

Males

10144

M60-64

10144

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13889

Males

9829

M60-64

9829

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14603

Males

10123

M60-64

10123

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13652

Males

9621

M60-64

9621

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12159

Males

8868

M60-64

8868

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10703

Males

8114

M60-64

8114

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9850

Males

7536

M60-64

7536

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12248

Males

8666

M60-64

8666

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11916

Males

8434

M60-64

8434

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12715

Males

8730

M60-64

8730

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11653

Males

8155

M60-64

8155

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10728

Males

7685

M60-64

7685

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12212

Males

8387

M60-64

8387

Passing Analysis

Category:
Athletes Passed
2294
Passed By
1981
Net Change
+313
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13290
5K → 10K221385-1363#13290#14653
10K → 15K215177+38#14653#14615
15K → 20K29379+214#14615#14401
20K → Half2352-29#14401#14430
Half → 25K20170+131#14430#14299
25K → 30K45031+419#14299#13880
30K → 20M2728+264#13880#13616
20M → 21M2647+257#13616#13359
21M → 35K8225+57#13359#13302
35K → 23M15229+123#13302#13179
23M → 24M9460+34#13179#13145
24M → 40K9715+82#13145#13063
40K → 25.2M499+40#13063#13023
25.2M → Finish8034+46#13023#12977
TOTALS22941981+313
📊

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