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BOSTON MARATHON 2023

Robert Mason

Bib: 14550•M

DE

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 42%
Division (M65-69)
#0 / 549
Top 4%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:45
Rank: #10952
Start → 5K
23:45 | 7:39/mi
10K· 6.21 mi
47:11
Rank: #10851 (+101)
5K → 10K
23:26 | 7:33/mi
15K· 9.32 mi
1:11:00
Rank: #11079 (-228)
10K → 15K
23:49 | 7:40/mi
20K· 12.43 mi
1:35:06
Rank: #11122 (-43)
15K → 20K
24:06 | 7:45/mi
Half· 13.11 mi
1:40:21
Rank: #11154 (-32)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
1:59:16
Rank: #11121 (+33)
Half → 25K
18:55 | 7:48/mi
30K· 18.64 mi
2:24:07
Rank: #11008 (+113)
25K → 30K
24:51 | 8:00/mi
20M
2:35:01
Rank: #10930 (+78)
30K → 20M
10:54 | 8:01/mi
21M
2:43:31
Rank: #10893 (+37)
20M → 21M
8:30 | 8:30/mi
35K· 21.75 mi
2:49:05
Rank: #10771 (+122)
21M → 35K
5:34 | 7:26/mi
23M
2:58:34
Rank: #10507 (+264)
35K → 23M
9:29 | 7:34/mi
24M
3:05:55
Rank: #10311 (+196)
23M → 24M
7:21 | 7:21/mi
40K· 24.85 mi
3:12:25
Rank: #10151 (+160)
24M → 40K
6:30 | 7:36/mi
25.2M
3:15:17
Rank: #10112 (+39)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:23:03
Rank: #10055 (+57)
25.2M → Finish
7:46 | 7:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:21
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:42:42
Pace7:50 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5223:457:3923:45
7:39
-
10K
6.21 mi11:16:1847:117:3623:26
7:33
-0:06
15K
9.32 mi11:40:071:11:007:3723:49
7:40
+0:07
20K
12.43 mi12:04:131:35:067:3924:06
7:45
+0:05
Half
13.11 mi12:09:281:40:217:395:15
7:42
-0:03
25K
15.53 mi12:28:231:59:167:4118:55
7:48
+0:06
30K
18.64 mi12:53:142:24:077:4424:51
8:00
+0:12
20M
20.00 mi13:04:082:35:017:4510:54
8:01
+0:01
21M
21.00 mi13:12:382:43:317:478:30
8:30
+0:29
35K
21.75 mi13:18:122:49:057:465:34
7:26
-1:04
23M
23.00 mi13:27:412:58:347:469:29
7:34
+0:08
24M
24.00 mi13:35:023:05:557:457:21
7:21
-0:13
40K
24.85 mi13:41:323:12:257:446:30
7:36
+0:15
25.2M
25.20 mi13:44:243:15:177:452:52
8:19
+0:43
Finish
26.22 mi13:52:103:23:037:457:46
7:37
-0:42

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

7:21 /mi

Average Pace

7:45 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:41

94% of race

Time at Steady Pace

11:22

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi10:52:5223:457:3923:45
7:39
#10952
10K
6.21 mi11:16:1847:117:3623:26
7:33
#10851
15K
9.32 mi11:40:071:11:007:3723:49
7:40
#11079
20K
12.43 mi12:04:131:35:067:3924:06
7:45
#11122
Half
13.11 mi12:09:281:40:217:395:15
7:42
#11154
25K
15.53 mi12:28:231:59:167:4118:55
7:48
#11121
30K
18.64 mi12:53:142:24:077:4424:51
8:00
#11008
20M
20.00 mi13:04:082:35:017:4510:54
8:01
#10930
21M
21.00 mi13:12:382:43:317:478:30
8:30
#10893
35K
21.75 mi13:18:122:49:057:465:34
7:26
#10771
23M
23.00 mi13:27:412:58:347:469:29
7:34
#10507
24M
24.00 mi13:35:023:05:557:457:21
7:21
#10311
40K
24.85 mi13:41:323:12:257:446:30
7:36
#10151
25.2M
25.20 mi13:44:243:15:177:452:52
8:19
#10112
Finish
26.22 mi13:52:103:23:037:457:46
7:37
#10055
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi109528633863311532(Top 43%)8865(Top 58%)8865(Top 1615%)
10K6.21 mi3.10 mi10851+1018584+498584+4910808(Top 41%)8586(Top 57%)8586(Top 1564%)
15K9.32 mi3.11 mi11079-2288688-1048688-10411532(Top 43%)8865(Top 58%)8865(Top 1615%)
20K12.43 mi3.11 mi11122-438714-268714-2611347(Top 43%)8725(Top 57%)8725(Top 1589%)
Half13.11 mi0.68 mi11154-328720-68720-611764(Top 44%)8949(Top 59%)8949(Top 1630%)
25K15.53 mi2.42 mi11121+338684+368684+3611089(Top 42%)8544(Top 56%)8544(Top 1556%)
30K18.64 mi3.11 mi11008+1138581+1038581+10310884(Top 41%)8286(Top 55%)8286(Top 1509%)
20M20.00 mi1.36 mi10930+788519+628519+6210399(Top 39%)7957(Top 52%)7957(Top 1449%)
21M21.00 mi1.00 mi10893+378469+508469+5010469(Top 39%)7838(Top 52%)7838(Top 1428%)
35K21.75 mi0.75 mi10771+1228395+748395+748092(Top 30%)6563(Top 43%)6563(Top 1195%)
23M23.00 mi1.25 mi10507+2648242+1538242+1536918(Top 26%)5783(Top 38%)5783(Top 1053%)
24M24.00 mi1.00 mi10311+1968118+1248118+1246732(Top 25%)5571(Top 37%)5571(Top 1015%)
40K24.85 mi0.85 mi10151+1608013+1058013+1057348(Top 28%)5847(Top 39%)5847(Top 1065%)
25.2M25.20 mi0.35 mi10112+397981+327981+328364(Top 31%)6396(Top 42%)6396(Top 1165%)
Finish26.22 mi1.02 mi10055+577920+617920+619399(Top 35%)6968(Top 46%)6968(Top 1269%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11532

Males

8865

M65-69

8865

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10808

Males

8586

M65-69

8586

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11532

Males

8865

M65-69

8865

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11347

Males

8725

M65-69

8725

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11764

Males

8949

M65-69

8949

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11089

Males

8544

M65-69

8544

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10884

Males

8286

M65-69

8286

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10399

Males

7957

M65-69

7957

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10469

Males

7838

M65-69

7838

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8092

Males

6563

M65-69

6563

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6918

Males

5783

M65-69

5783

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6732

Males

5571

M65-69

5571

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7348

Males

5847

M65-69

5847

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8364

Males

6396

M65-69

6396

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9399

Males

6968

M65-69

6968

Passing Analysis

Category:
Athletes Passed
2122*
Passed By
1225
Net Change
+897
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10952
5K → 10K343242+101#10952#10851
10K → 15K111339-228#10851#11079
15K → 20K144187-43#11079#11122
20K → Half1446-32#11122#11154
Half → 25K141108+33#11154#11121
25K → 30K224111+113#11121#11008
30K → 20M127*49+78#11008#10930
20M → 21M9457+37#10930#10893
21M → 35K1286+122#10893#10771
35K → 23M2684+264#10771#10507
23M → 24M2015+196#10507#10311
24M → 40K17010+160#10311#10151
40K → 25.2M52*13+39#10151#10112
25.2M → Finish10548+57#10112#10055
TOTALS2122*1225+897

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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