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BOSTON MARATHON 2023

Gustavo Defendi

Bib: 31125•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
9:03/mi
28:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
55:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:22:26
↑ 67↓ 78
20K· 12.43 mi
9:01/mi
1:50:27
↑ 106↓ 860.1%
Half· 13.11 mi
9:01/mi
1:56:36
↑ 19↓ 370.5%
25K· 15.53 mi
9:50/mi
2:20:26
↑ 66↓ 880.2%
30K· 18.64 mi
10:24/mi
2:52:46
↑ 181↓ 1480.2%
20M
10:28/mi
3:07:00
↑ 64↓ 500.2%
21M
11:51/mi
3:18:51
↑ 106↓ 241.6%
35K· 21.75 mi
11:10/mi
3:27:12
↑ 17↓ 861.7%
23M
10:55/mi
3:40:52
↑ 23↓ 630.6%
24M
10:57/mi
3:51:49
↓ 821.3%
40K· 24.85 mi
11:27/mi
4:01:36
↓ 200.3%
25.2M
12:02/mi
4:05:45
↑ 13↓ 160.2%
Finish· 26.22 mi
11:08/mi
4:17:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:36
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:20:30
Pace10:43 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:0628:089:0328:08
9:03
-
10K
6.21 mi11:50:2155:238:5527:15
8:46
-0:17
15K
9.32 mi12:17:241:22:268:5127:03
8:42
-0:04
20K
12.43 mi12:45:251:50:278:5328:01
9:01
+0:19
Half
13.11 mi12:51:341:56:368:546:09
9:01
0:00
25K
15.53 mi13:15:242:20:269:0223:50
9:50
+0:49
30K
18.64 mi13:47:442:52:469:1632:20
10:24
+0:34
20M
20.00 mi14:01:583:07:009:2114:14
10:28
+0:04
21M
21.00 mi14:13:493:18:519:2811:51
11:51
+1:23
35K
21.75 mi14:22:103:27:129:328:21
11:10
-0:41
23M
23.00 mi14:35:503:40:529:3613:40
10:55
-0:15
24M
24.00 mi14:46:473:51:499:4010:57
10:57
+0:02
40K
24.85 mi14:56:344:01:369:439:47
11:27
+0:30
25.2M
25.20 mi15:00:434:05:459:454:09
12:02
+0:35
Finish
26.22 mi15:12:044:17:069:4911:21
11:08
-0:54

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

8:42 /mi

Average Pace

9:49 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:26

55% of race

Time at Steady Pace

1:11:11

28% of race

Time at Slower Pace

45:29

18% of race

Average Pace: 9:48 /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 mi11:23:0628:089:0328:08
9:03
#20679
10K
6.21 mi11:50:2155:238:5527:15
8:46
#20273
15K
9.32 mi12:17:241:22:268:5127:03
8:42
#19832
20K
12.43 mi12:45:251:50:278:5328:01
9:01
#19800
Half
13.11 mi12:51:341:56:368:546:09
9:01
#19826
25K
15.53 mi13:15:242:20:269:0223:50
9:50
#20322
30K
18.64 mi13:47:442:52:469:1632:20
10:24
#20699
20M
20.00 mi14:01:583:07:009:2114:14
10:28
#20787
21M
21.00 mi14:13:493:18:519:2811:51
11:51
#20913
35K
21.75 mi14:22:103:27:129:328:21
11:10
#21062
23M
23.00 mi14:35:503:40:529:3613:40
10:55
#21137
24M
24.00 mi14:46:473:51:499:4010:57
10:57
#21240
40K
24.85 mi14:56:344:01:369:439:47
11:27
#21343
25.2M
25.20 mi15:00:434:05:459:454:09
12:02
#21364
Finish
26.22 mi15:12:044:17:069:4911:21
11:08
#21532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20679124461244619012(Top 71%)11883(Top 78%)11883(Top 530%)
10K6.21 mi3.10 mi20273+40612347+9912347+9919786(Top 74%)12194(Top 80%)12194(Top 544%)
15K9.32 mi3.11 mi19832+44112173+17412173+17419012(Top 71%)11883(Top 78%)11883(Top 530%)
20K12.43 mi3.11 mi19800+3212176-312176-319786(Top 74%)12220(Top 81%)12220(Top 545%)
Half13.11 mi0.68 mi19826-2612191-1512191-1520488(Top 77%)12513(Top 82%)12513(Top 558%)
25K15.53 mi2.42 mi20322-49612415-22412415-22421809(Top 82%)13060(Top 86%)13060(Top 583%)
30K18.64 mi3.11 mi20699-37712573-15812573-15822009(Top 83%)13072(Top 86%)13072(Top 583%)
20M20.00 mi1.36 mi20787-8812599-2612599-2621665(Top 81%)12852(Top 85%)12852(Top 573%)
21M21.00 mi1.00 mi20913-12612633-3412633-3422493(Top 84%)13198(Top 87%)13198(Top 589%)
35K21.75 mi0.75 mi21062-14912679-4612679-4623575(Top 89%)13631(Top 90%)13631(Top 608%)
23M23.00 mi1.25 mi21137-7512706-2712706-2722174(Top 83%)13000(Top 86%)13000(Top 580%)
24M24.00 mi1.00 mi21240-10312745-3912745-3922946(Top 86%)13317(Top 88%)13317(Top 594%)
40K24.85 mi0.85 mi21343-10312785-4012785-4023112(Top 87%)13367(Top 88%)13367(Top 596%)
25.2M25.20 mi0.35 mi21364-2112790-512790-522541(Top 85%)13096(Top 86%)13096(Top 584%)
Finish26.22 mi1.02 mi21532-16812855-6512855-6524195(Top 91%)13928(Top 92%)13928(Top 622%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

19012

Males

11883

M40-44

11883

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19786

Males

12194

M40-44

12194

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

19012

Males

11883

M40-44

11883

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19786

Males

12220

M40-44

12220

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20488

Males

12513

M40-44

12513

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

21809

Males

13060

M40-44

13060

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22009

Males

13072

M40-44

13072

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21665

Males

12852

M40-44

12852

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22493

Males

13198

M40-44

13198

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23575

Males

13631

M40-44

13631

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22174

Males

13000

M40-44

13000

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22946

Males

13317

M40-44

13317

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23112

Males

13367

M40-44

13367

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22541

Males

13096

M40-44

13096

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24195

Males

13928

M40-44

13928

Passing Analysis

Category:
Athletes Passed
1553
Passed By
2406
Net Change
-853
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20679
5K → 10K573167+406#20679#20273
10K → 15K49453+441#20273#19832
15K → 20K192160+32#19832#19800
20K → Half2046-26#19800#19826
Half → 25K33529-496#19826#20322
25K → 30K53430-377#20322#20699
30K → 20M51139-88#20699#20787
20M → 21M29155-126#20787#20913
21M → 35K10159-149#20913#21062
35K → 23M34109-75#21062#21137
23M → 24M21124-103#21137#21240
24M → 40K15118-103#21240#21343
40K → 25.2M1940-21#21343#21364
25.2M → Finish9177-168#21364#21532
TOTALS15532406-853
📊

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