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BOSTON MARATHON 2023

Osvaldo Nicolau

Bib: 9142•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M50-54)
#0 / 2052
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:21
Rank: #5314
Start → 5K
21:21 | 6:52/mi
10K· 6.21 mi
42:22
Rank: #5102 (+212)
5K → 10K
21:01 | 6:46/mi
15K· 9.32 mi
1:03:12
Rank: #4808 (+294)
10K → 15K
20:50 | 6:42/mi
20K· 12.43 mi
1:24:33
Rank: #4881 (-73)
15K → 20K
21:21 | 6:52/mi
Half· 13.11 mi
1:29:04
Rank: #4805 (+76)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:45:59
Rank: #4918 (-113)
Half → 25K
16:55 | 6:59/mi
30K· 18.64 mi
2:07:17
Rank: #4550 (+368)
25K → 30K
21:18 | 6:51/mi
20M
2:16:31
Rank: #4381 (+169)
30K → 20M
9:14 | 6:48/mi
21M
2:23:52
Rank: #4321 (+60)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:28:43
Rank: #4200 (+121)
21M → 35K
4:51 | 6:29/mi
23M
2:37:28
Rank: #4167 (+33)
35K → 23M
8:45 | 6:59/mi
24M
2:44:01
Rank: #4034 (+133)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:50:02
Rank: #4034
24M → 40K
6:01 | 7:02/mi
25.2M
2:52:40
Rank: #4047 (-13)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:59:42
Rank: #4109 (-62)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:04
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:30:38
Pace6:55 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2921:216:5221:21
6:52
-
10K
6.21 mi11:08:3042:226:4921:01
6:46
-0:06
15K
9.32 mi11:29:201:03:126:4720:50
6:42
-0:04
20K
12.43 mi11:50:411:24:336:4821:21
6:52
+0:10
Half
13.11 mi11:55:121:29:046:484:31
6:37
-0:15
25K
15.53 mi12:12:071:45:596:4916:55
6:59
+0:22
30K
18.64 mi12:33:252:07:176:5021:18
6:51
-0:08
20M
20.00 mi12:42:392:16:316:509:14
6:48
-0:03
21M
21.00 mi12:50:002:23:526:517:21
7:21
+0:33
35K
21.75 mi12:54:512:28:436:504:51
6:29
-0:52
23M
23.00 mi13:03:362:37:286:518:45
6:59
+0:30
24M
24.00 mi13:10:092:44:016:506:33
6:33
-0:26
40K
24.85 mi13:16:102:50:026:506:01
7:02
+0:29
25.2M
25.20 mi13:18:482:52:406:512:38
7:38
+0:36
Finish
26.22 mi13:25:502:59:426:527:02
6:54
-0:44

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

6:29 /mi

Average Pace

6:52 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:43

94% of race

Time at Steady Pace

9:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:47:2921:216:5221:21
6:52
#5314
10K
6.21 mi11:08:3042:226:4921:01
6:46
#5102
15K
9.32 mi11:29:201:03:126:4720:50
6:42
#4808
20K
12.43 mi11:50:411:24:336:4821:21
6:52
#4881
Half
13.11 mi11:55:121:29:046:484:31
6:37
#4805
25K
15.53 mi12:12:071:45:596:4916:55
6:59
#4918
30K
18.64 mi12:33:252:07:176:5021:18
6:51
#4550
20M
20.00 mi12:42:392:16:316:509:14
6:48
#4381
21M
21.00 mi12:50:002:23:526:517:21
7:21
#4321
35K
21.75 mi12:54:512:28:436:504:51
6:29
#4200
23M
23.00 mi13:03:362:37:286:518:45
6:59
#4167
24M
24.00 mi13:10:092:44:016:506:33
6:33
#4034
40K
24.85 mi13:16:102:50:026:506:01
7:02
#4034
25.2M
25.20 mi13:18:482:52:406:512:38
7:38
#4047
Finish
26.22 mi13:25:502:59:426:527:02
6:54
#4109
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5314491249124180(Top 16%)3922(Top 26%)3922(Top 191%)
10K6.21 mi3.10 mi5102+2124729+1834729+1834938(Top 19%)4577(Top 30%)4577(Top 223%)
15K9.32 mi3.11 mi4808+2944472+2574472+2574180(Top 16%)3922(Top 26%)3922(Top 191%)
20K12.43 mi3.11 mi4881-734546-744546-745102(Top 19%)4717(Top 31%)4717(Top 230%)
Half13.11 mi0.68 mi4805+764477+694477+693614(Top 14%)3422(Top 23%)3422(Top 167%)
25K15.53 mi2.42 mi4918-1134572-954572-955426(Top 20%)4997(Top 33%)4997(Top 244%)
30K18.64 mi3.11 mi4550+3684247+3254247+3253356(Top 13%)3160(Top 21%)3160(Top 154%)
20M20.00 mi1.36 mi4381+1694090+1574090+1572802(Top 11%)2649(Top 17%)2649(Top 129%)
21M21.00 mi1.00 mi4321+604040+504040+503877(Top 15%)3585(Top 24%)3585(Top 175%)
35K21.75 mi0.75 mi4200+1213932+1083932+1082364(Top 9%)2244(Top 15%)2244(Top 109%)
23M23.00 mi1.25 mi4167+333902+303902+303724(Top 14%)3438(Top 23%)3438(Top 168%)
24M24.00 mi1.00 mi4034+1333779+1233779+1232341(Top 9%)2192(Top 14%)2192(Top 107%)
40K24.85 mi0.85 mi40343777+23777+24017(Top 15%)3599(Top 24%)3599(Top 175%)
25.2M25.20 mi0.35 mi4047-133787-103787-104508(Top 17%)3921(Top 26%)3921(Top 191%)
Finish26.22 mi1.02 mi4109-623844-573844-574614(Top 17%)4003(Top 26%)4003(Top 195%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4180

Males

3922

M50-54

3922

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4938

Males

4577

M50-54

4577

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4180

Males

3922

M50-54

3922

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5102

Males

4717

M50-54

4717

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3614

Males

3422

M50-54

3422

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5426

Males

4997

M50-54

4997

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3356

Males

3160

M50-54

3160

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2802

Males

2649

M50-54

2649

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3877

Males

3585

M50-54

3585

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2364

Males

2244

M50-54

2244

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3724

Males

3438

M50-54

3438

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2341

Males

2192

M50-54

2192

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4017

Males

3599

M50-54

3599

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4508

Males

3921

M50-54

3921

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4614

Males

4003

M50-54

4003

Passing Analysis

Category:
Athletes Passed
1933
Passed By
728
Net Change
+1205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5314
5K → 10K313101+212#5314#5102
10K → 15K31723+294#5102#4808
15K → 20K79152-73#4808#4881
20K → Half782+76#4881#4805
Half → 25K70183-113#4805#4918
25K → 30K38214+368#4918#4550
30K → 20M1756+169#4550#4381
20M → 21M9131+60#4381#4321
21M → 35K1221+121#4321#4200
35K → 23M7340+33#4200#4167
23M → 24M1374+133#4167#4034
24M → 40K48480#4034#4034
40K → 25.2M2336-13#4034#4047
25.2M → Finish2587-62#4047#4109
TOTALS1933728+1205
📊

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