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BOSTON MARATHON 2023

James Mastrianni

Bib: 19571•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 20%
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
8:19/mi
25:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:04/mi
50:56
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:15:47
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:40:37
↑ 106↓ 860.1%
Half· 13.11 mi
11:20/mi
1:48:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
2:07:21
↑ 66↓ 880.2%
30K· 18.64 mi
7:57/mi
2:32:02
↑ 181↓ 1480.2%
20M
8:03/mi
2:42:58
↑ 64↓ 500.2%
21M
8:29/mi
2:51:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:57:10
↑ 17↓ 861.7%
23M
8:10/mi
3:07:23
↑ 23↓ 630.6%
24M
7:53/mi
3:15:16
↓ 821.3%
40K· 24.85 mi
8:22/mi
3:22:25
↓ 200.3%
25.2M
8:59/mi
3:25:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:34:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:48:21
Pace8:16 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:45:40
Pace8:04 /mi
📊Negative Split: 2.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4125:518:1925:51
8:19
-
10K
6.21 mi11:47:4650:568:1225:05
8:04
-0:15
15K
9.32 mi12:12:371:15:478:0824:51
8:00
-0:04
20K
12.43 mi12:37:271:40:378:0624:50
8:00
0:00
Half
13.11 mi12:45:111:48:218:167:44
11:20
+3:20
25K
15.53 mi13:04:112:07:218:1219:00
7:50
-3:30
30K
18.64 mi13:28:522:32:028:0924:41
7:57
+0:07
20M
20.00 mi13:39:482:42:588:0910:56
8:03
+0:06
21M
21.00 mi13:48:172:51:278:108:29
8:29
+0:26
35K
21.75 mi13:54:002:57:108:095:43
7:38
-0:51
23M
23.00 mi14:04:133:07:238:0910:13
8:10
+0:32
24M
24.00 mi14:12:063:15:168:087:53
7:53
-0:17
40K
24.85 mi14:19:153:22:258:097:09
8:22
+0:29
25.2M
25.20 mi14:22:213:25:318:093:06
8:59
+0:37
Finish
26.22 mi14:30:513:34:018:108:30
8:20
-0:39

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

7:38 /mi

Average Pace

8:10 /mi

Slowest Pace

11:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:43

3% of race

Time at Steady Pace

3:17:28

92% of race

Time at Slower Pace

10:50

5% of race

Average Pace: 8:10 /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 mi11:22:4125:518:1925:51
8:19
#16280
10K
6.21 mi11:47:4650:568:1225:05
8:04
#15794
15K
9.32 mi12:12:371:15:478:0824:51
8:00
#15339
20K
12.43 mi12:37:271:40:378:0624:50
8:00
#14836
Half
13.11 mi12:45:111:48:218:167:44
11:20
#16024
25K
15.53 mi13:04:112:07:218:1219:00
7:50
#15336
30K
18.64 mi13:28:522:32:028:0924:41
7:57
#14491
20M
20.00 mi13:39:482:42:588:0910:56
8:03
#14208
21M
21.00 mi13:48:172:51:278:108:29
8:29
#13943
35K
21.75 mi13:54:002:57:108:095:43
7:38
#13772
23M
23.00 mi14:04:133:07:238:0910:13
8:10
#13564
24M
24.00 mi14:12:063:15:168:087:53
7:53
#13386
40K
24.85 mi14:19:153:22:258:097:09
8:22
#13331
25.2M
25.20 mi14:22:213:25:318:093:06
8:59
#13295
Finish
26.22 mi14:30:513:34:018:108:30
8:20
#13346
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16280108021080214360(Top 54%)10043(Top 66%)10043(Top 905%)
10K6.21 mi3.10 mi15794+48610619+18310619+18315315(Top 58%)10432(Top 69%)10432(Top 940%)
15K9.32 mi3.11 mi15339+45510440+17910440+17914360(Top 54%)10043(Top 66%)10043(Top 905%)
20K12.43 mi3.11 mi14836+50310238+20210238+20213350(Top 50%)9601(Top 63%)9601(Top 865%)
Half13.11 mi0.68 mi16024-118810675-43710675-43725318(Top 95%)14615(Top 96%)14615(Top 1317%)
25K15.53 mi2.42 mi15336+68810394+28110394+28111389(Top 43%)8667(Top 57%)8667(Top 781%)
30K18.64 mi3.11 mi14491+84510027+36710027+36710472(Top 39%)8086(Top 53%)8086(Top 728%)
20M20.00 mi1.36 mi14208+2839892+1359892+13510602(Top 40%)8058(Top 53%)8058(Top 726%)
21M21.00 mi1.00 mi13943+2659781+1119781+11110392(Top 39%)7812(Top 51%)7812(Top 704%)
35K21.75 mi0.75 mi13772+1719699+829699+829567(Top 36%)7404(Top 49%)7404(Top 667%)
23M23.00 mi1.25 mi13564+2089593+1069593+10610890(Top 41%)7915(Top 52%)7915(Top 713%)
24M24.00 mi1.00 mi13386+1789506+879506+8710406(Top 39%)7615(Top 50%)7615(Top 686%)
40K24.85 mi0.85 mi13331+559456+509456+5012442(Top 47%)8523(Top 56%)8523(Top 768%)
25.2M25.20 mi0.35 mi13295+369426+309426+3012416(Top 47%)8479(Top 56%)8479(Top 764%)
Finish26.22 mi1.02 mi13346-519427-19427-114319(Top 54%)9391(Top 62%)9391(Top 846%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14360

Males

10043

M60-64

10043

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15315

Males

10432

M60-64

10432

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14360

Males

10043

M60-64

10043

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13350

Males

9601

M60-64

9601

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25318

Males

14615

M60-64

14615

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11389

Males

8667

M60-64

8667

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10472

Males

8086

M60-64

8086

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10602

Males

8058

M60-64

8058

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10392

Males

7812

M60-64

7812

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9567

Males

7404

M60-64

7404

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10890

Males

7915

M60-64

7915

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10406

Males

7615

M60-64

7615

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12442

Males

8523

M60-64

8523

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12416

Males

8479

M60-64

8479

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14319

Males

9391

M60-64

9391

Passing Analysis

Category:
Athletes Passed
4472
Passed By
1538
Net Change
+2934
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16280
5K → 10K608122+486#16280#15794
10K → 15K49540+455#15794#15339
15K → 20K52017+503#15339#14836
20K → Half01188-1188#14836#16024
Half → 25K6891+688#16024#15336
25K → 30K8461+845#15336#14491
30K → 20M2874+283#14491#14208
20M → 21M2705+265#14208#13943
21M → 35K1743+171#13943#13772
35K → 23M21911+208#13772#13564
23M → 24M1868+178#13564#13386
24M → 40K8530+55#13386#13331
40K → 25.2M5317+36#13331#13295
25.2M → Finish4091-51#13295#13346
TOTALS44721538+2934
📊

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