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BOSTON MARATHON 2023

Peter Nguyen

Bib: 19045•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:43
Rank: #23158
Start → 5K
30:43 | 9:53/mi
10K· 6.21 mi
1:00:45
Rank: #23113 (+45)
5K → 10K
30:02 | 9:40/mi
15K· 9.32 mi
1:31:29
Rank: #23180 (-67)
10K → 15K
30:44 | 9:54/mi
20K· 12.43 mi
2:02:13
Rank: #23016 (+164)
15K → 20K
30:44 | 9:54/mi
Half· 13.11 mi
2:08:31
Rank: #22941 (+75)
20K → Half
6:18 | 9:14/mi
25K· 15.53 mi
2:31:45
Rank: #22637 (+304)
Half → 25K
23:14 | 9:35/mi
30K· 18.64 mi
3:02:06
Rank: #22277 (+360)
25K → 30K
30:21 | 9:46/mi
20M
3:15:15
Rank: #22058 (+219)
30K → 20M
13:09 | 9:41/mi
21M
3:26:49
Rank: #22058
20M → 21M
11:34 | 11:34/mi
35K· 21.75 mi
3:34:00
Rank: #22004 (+54)
21M → 35K
7:11 | 9:36/mi
23M
3:46:48
Rank: #21913 (+91)
35K → 23M
12:48 | 10:13/mi
24M
3:56:37
Rank: #21841 (+72)
23M → 24M
9:49 | 9:49/mi
40K· 24.85 mi
4:06:08
Rank: #21872 (-31)
24M → 40K
9:31 | 11:08/mi
25.2M
4:10:25
Rank: #21899 (-27)
40K → 25.2M
4:17 | 12:25/mi
Finish· 26.22 mi
4:21:00
Rank: #21936 (-37)
25.2M → Finish
10:35 | 10:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:31
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:12:29
Pace10:06 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:0930:439:5330:43
9:53
-
10K
6.21 mi11:56:111:00:459:4730:02
9:40
-0:13
15K
9.32 mi12:26:551:31:299:4930:44
9:54
+0:14
20K
12.43 mi12:57:392:02:139:5030:44
9:54
0:00
Half
13.11 mi13:03:572:08:319:486:18
9:14
-0:40
25K
15.53 mi13:27:112:31:459:4623:14
9:35
+0:21
30K
18.64 mi13:57:323:02:069:4630:21
9:46
+0:11
20M
20.00 mi14:10:413:15:159:4613:09
9:41
-0:05
21M
21.00 mi14:22:153:26:499:5111:34
11:34
+1:53
35K
21.75 mi14:29:263:34:009:507:11
9:36
-1:58
23M
23.00 mi14:42:143:46:489:5212:48
10:13
+0:37
24M
24.00 mi14:52:033:56:379:529:49
9:49
-0:24
40K
24.85 mi15:01:344:06:089:549:31
11:08
+1:19
25.2M
25.20 mi15:05:514:10:259:564:17
12:25
+1:17
Finish
26.22 mi15:16:264:21:009:5810:35
10:23
-2:02

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

9:14 /mi

Average Pace

9:58 /mi

Slowest Pace

12:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:18

2% of race

Time at Steady Pace

3:38:45

84% of race

Time at Slower Pace

35:57

14% of race

Average Pace: 9:57 /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 mi11:26:0930:439:5330:43
9:53
#23158
10K
6.21 mi11:56:111:00:459:4730:02
9:40
#23113
15K
9.32 mi12:26:551:31:299:4930:44
9:54
#23180
20K
12.43 mi12:57:392:02:139:5030:44
9:54
#23016
Half
13.11 mi13:03:572:08:319:486:18
9:14
#22941
25K
15.53 mi13:27:112:31:459:4623:14
9:35
#22637
30K
18.64 mi13:57:323:02:069:4630:21
9:46
#22277
20M
20.00 mi14:10:413:15:159:4613:09
9:41
#22058
21M
21.00 mi14:22:153:26:499:5111:34
11:34
#22058
35K
21.75 mi14:29:263:34:009:507:11
9:36
#22004
23M
23.00 mi14:42:143:46:489:5212:48
10:13
#21913
24M
24.00 mi14:52:033:56:379:529:49
9:49
#21841
40K
24.85 mi15:01:344:06:089:549:31
11:08
#21872
25.2M
25.20 mi15:05:514:10:259:564:17
12:25
#21899
Finish
26.22 mi15:16:264:21:009:5810:35
10:23
#21936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23158136611366123281(Top 87%)13774(Top 91%)13774(Top 969%)
10K6.21 mi3.10 mi23113+4513662-113662-122971(Top 86%)13627(Top 90%)13627(Top 958%)
15K9.32 mi3.11 mi23180-6713714-5213714-5223281(Top 87%)13774(Top 91%)13774(Top 969%)
20K12.43 mi3.11 mi23016+16413638+7613638+7622613(Top 85%)13446(Top 89%)13446(Top 946%)
Half13.11 mi0.68 mi22941+7513601+3713601+3721263(Top 80%)12856(Top 85%)12856(Top 904%)
25K15.53 mi2.42 mi22637+30413446+15513446+15521095(Top 79%)12756(Top 84%)12756(Top 897%)
30K18.64 mi3.11 mi22277+36013264+18213264+18220359(Top 76%)12365(Top 81%)12365(Top 870%)
20M20.00 mi1.36 mi22058+21913156+10813156+10819498(Top 73%)11910(Top 78%)11910(Top 838%)
21M21.00 mi1.00 mi2205813143+1313143+1321984(Top 83%)12983(Top 86%)12983(Top 913%)
35K21.75 mi0.75 mi22004+5413120+2313120+2320165(Top 76%)12119(Top 80%)12119(Top 852%)
23M23.00 mi1.25 mi21913+9113070+5013070+5020637(Top 78%)12304(Top 81%)12304(Top 865%)
24M24.00 mi1.00 mi21841+7213023+4713023+4720275(Top 76%)12121(Top 80%)12121(Top 852%)
40K24.85 mi0.85 mi21872-3113025-213025-222607(Top 85%)13130(Top 87%)13130(Top 923%)
25.2M25.20 mi0.35 mi21899-2713032-713032-723144(Top 87%)13384(Top 88%)13384(Top 941%)
Finish26.22 mi1.02 mi21936-3713045-1313045-1322756(Top 85%)13202(Top 87%)13202(Top 928%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23281

Males

13774

M55-59

13774

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22971

Males

13627

M55-59

13627

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23281

Males

13774

M55-59

13774

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22613

Males

13446

M55-59

13446

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

21263

Males

12856

M55-59

12856

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

21095

Males

12756

M55-59

12756

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20359

Males

12365

M55-59

12365

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19498

Males

11910

M55-59

11910

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

21984

Males

12983

M55-59

12983

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

20165

Males

12119

M55-59

12119

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20637

Males

12304

M55-59

12304

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20275

Males

12121

M55-59

12121

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22607

Males

13130

M55-59

13130

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23144

Males

13384

M55-59

13384

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22756

Males

13202

M55-59

13202

Passing Analysis

Category:
Athletes Passed
1902
Passed By
680
Net Change
+1222
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23158
5K → 10K232187+45#23158#23113
10K → 15K112179-67#23113#23180
15K → 20K21450+164#23180#23016
20K → Half794+75#23016#22941
Half → 25K3051+304#22941#22637
25K → 30K3677+360#22637#22277
30K → 20M2256+219#22277#22058
20M → 21M63630#22058#22058
21M → 35K606+54#22058#22004
35K → 23M10413+91#22004#21913
23M → 24M8210+72#21913#21841
24M → 40K2960-31#21841#21872
40K → 25.2M633-27#21872#21899
25.2M → Finish2461-37#21899#21936
TOTALS1902680+1222
📊

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