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BOSTON MARATHON 2023

Nicholas Boulas

Bib: 25001•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
10:29/mi
32:33
↑ 97↓ 3451.5%
10K· 6.21 mi
10:13/mi
1:04:16
↑ 79↓ 1380.4%
15K· 9.32 mi
10:13/mi
1:36:02
↑ 67↓ 78
20K· 12.43 mi
10:35/mi
2:08:55
↑ 106↓ 860.1%
Half· 13.11 mi
10:42/mi
2:16:13
↑ 19↓ 370.5%
25K· 15.53 mi
10:55/mi
2:42:42
↑ 66↓ 880.2%
30K· 18.64 mi
11:37/mi
3:18:47
↑ 181↓ 1480.2%
20M
11:44/mi
3:34:44
↑ 64↓ 500.2%
21M
13:12/mi
3:47:56
↑ 106↓ 241.6%
35K· 21.75 mi
11:02/mi
3:56:11
↑ 17↓ 861.7%
23M
11:59/mi
4:11:11
↑ 23↓ 630.6%
24M
12:24/mi
4:23:35
↓ 821.3%
40K· 24.85 mi
13:05/mi
4:34:46
↓ 200.3%
25.2M
14:27/mi
4:39:45
↑ 13↓ 160.2%
Finish· 26.22 mi
11:49/mi
4:51:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:13
Pace10:23 /mi
2nd Half
Distance13.11 mi
Time2:35:35
Pace11:52 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2832:3310:2932:33
10:29
-
10K
6.21 mi12:21:111:04:1610:2131:43
10:13
-0:16
15K
9.32 mi12:52:571:36:0210:1831:46
10:13
0:00
20K
12.43 mi13:25:502:08:5510:2232:53
10:35
+0:22
Half
13.11 mi13:33:082:16:1310:237:18
10:42
+0:07
25K
15.53 mi13:59:372:42:4210:2826:29
10:55
+0:13
30K
18.64 mi14:35:423:18:4710:4036:05
11:37
+0:42
20M
20.00 mi14:51:393:34:4410:4415:57
11:44
+0:07
21M
21.00 mi15:04:513:47:5610:5113:12
13:12
+1:28
35K
21.75 mi15:13:063:56:1110:528:15
11:02
-2:10
23M
23.00 mi15:28:064:11:1110:5515:00
11:59
+0:57
24M
24.00 mi15:40:304:23:3510:5912:24
12:24
+0:25
40K
24.85 mi15:51:414:34:4611:0311:11
13:05
+0:41
25.2M
25.20 mi15:56:404:39:4511:064:59
14:27
+1:22
Finish
26.22 mi16:08:434:51:4811:0812:03
11:49
-2:38

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

10:13 /mi

Average Pace

11:08 /mi

Slowest Pace

14:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:42

56% of race

Time at Steady Pace

1:27:20

30% of race

Time at Slower Pace

41:46

14% of race

Average Pace: 11:08 /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 mi11:49:2832:3310:2932:33
10:29
#24644
10K
6.21 mi12:21:111:04:1610:2131:43
10:13
#24370
15K
9.32 mi12:52:571:36:0210:1831:46
10:13
#24226
20K
12.43 mi13:25:502:08:5510:2232:53
10:35
#24167
Half
13.11 mi13:33:082:16:1310:237:18
10:42
#24181
25K
15.53 mi13:59:372:42:4210:2826:29
10:55
#24116
30K
18.64 mi14:35:423:18:4710:4036:05
11:37
#24094
20M
20.00 mi14:51:393:34:4410:4415:57
11:44
#24095
21M
21.00 mi15:04:513:47:5610:5113:12
13:12
#24118
35K
21.75 mi15:13:063:56:1110:528:15
11:02
#24109
23M
23.00 mi15:28:064:11:1110:5515:00
11:59
#24100
24M
24.00 mi15:40:304:23:3510:5912:24
12:24
#24155
40K
24.85 mi15:51:414:34:4611:0311:11
13:05
#24216
25.2M
25.20 mi15:56:404:39:4511:064:59
14:27
#24247
Finish
26.22 mi16:08:434:51:4811:0812:03
11:49
#24298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24644143801438023929(Top 90%)14050(Top 93%)14050(Top 685%)
10K6.21 mi3.10 mi24370+27414258+12214258+12224152(Top 91%)14161(Top 93%)14161(Top 690%)
15K9.32 mi3.11 mi24226+14414188+7014188+7023929(Top 90%)14050(Top 93%)14050(Top 685%)
20K12.43 mi3.11 mi24167+5914163+2514163+2523983(Top 90%)14065(Top 93%)14065(Top 685%)
Half13.11 mi0.68 mi24181-1414164-114164-124519(Top 92%)14275(Top 94%)14275(Top 696%)
25K15.53 mi2.42 mi24116+6514123+4114123+4123844(Top 90%)13952(Top 92%)13952(Top 680%)
30K18.64 mi3.11 mi24094+2214106+1714106+1724022(Top 90%)13974(Top 92%)13974(Top 681%)
20M20.00 mi1.36 mi24095-114082+2414082+2423866(Top 90%)13844(Top 91%)13844(Top 675%)
21M21.00 mi1.00 mi24118-2314083-114083-124298(Top 91%)14032(Top 92%)14032(Top 684%)
35K21.75 mi0.75 mi24109+914076+714076+723350(Top 88%)13542(Top 89%)13542(Top 660%)
23M23.00 mi1.25 mi24100+914062+1414062+1423967(Top 90%)13843(Top 91%)13843(Top 675%)
24M24.00 mi1.00 mi24155-5514081-1914081-1924942(Top 94%)14273(Top 94%)14273(Top 696%)
40K24.85 mi0.85 mi24216-6114100-1914100-1924998(Top 94%)14301(Top 94%)14301(Top 697%)
25.2M25.20 mi0.35 mi24247-3114115-1514115-1525357(Top 95%)14477(Top 95%)14477(Top 706%)
Finish26.22 mi1.02 mi24298-5114130-1514130-1525064(Top 94%)14342(Top 95%)14342(Top 699%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23929

Males

14050

M50-54

14050

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24152

Males

14161

M50-54

14161

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23929

Males

14050

M50-54

14050

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23983

Males

14065

M50-54

14065

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24519

Males

14275

M50-54

14275

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23844

Males

13952

M50-54

13952

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

24022

Males

13974

M50-54

13974

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23866

Males

13844

M50-54

13844

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24298

Males

14032

M50-54

14032

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

23350

Males

13542

M50-54

13542

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

23967

Males

13843

M50-54

13843

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

24942

Males

14273

M50-54

14273

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24998

Males

14301

M50-54

14301

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25357

Males

14477

M50-54

14477

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25064

Males

14342

M50-54

14342

Passing Analysis

Category:
Athletes Passed
1161
Passed By
815
Net Change
+346
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24644
5K → 10K35985+274#24644#24370
10K → 15K21268+144#24370#24226
15K → 20K13879+59#24226#24167
20K → Half1933-14#24167#24181
Half → 25K12560+65#24181#24116
25K → 30K11189+22#24116#24094
30K → 20M5960-1#24094#24095
20M → 21M3053-23#24095#24118
21M → 35K2314+9#24118#24109
35K → 23M4132+9#24109#24100
23M → 24M1267-55#24100#24155
24M → 40K1778-61#24155#24216
40K → 25.2M536-31#24216#24247
25.2M → Finish1061-51#24247#24298
TOTALS1161815+346
📊

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