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BOSTON MARATHON 2023

Duy Nguyen

Bib: 29910•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:02
Rank: #22557
Start → 5K
30:02 | 9:40/mi
10K· 6.21 mi
59:43
Rank: #22634 (-77)
5K → 10K
29:41 | 9:33/mi
15K· 9.32 mi
1:28:01
Rank: #22129 (+505)
10K → 15K
28:18 | 9:07/mi
20K· 12.43 mi
1:56:17
Rank: #21689 (+440)
15K → 20K
28:16 | 9:06/mi
Half· 13.11 mi
2:02:37
Rank: #21678 (+11)
20K → Half
6:20 | 9:17/mi
25K· 15.53 mi
2:26:24
Rank: #21651 (+27)
Half → 25K
23:47 | 9:49/mi
30K· 18.64 mi
2:59:03
Rank: #21756 (-105)
25K → 30K
32:39 | 10:31/mi
20M
3:13:24
Rank: #21786 (-30)
30K → 20M
14:21 | 10:34/mi
21M
3:24:29
Rank: #21756 (+30)
20M → 21M
11:05 | 11:05/mi
35K· 21.75 mi
3:31:38
Rank: #21704 (+52)
21M → 35K
7:09 | 9:33/mi
23M
3:43:55
Rank: #21562 (+142)
35K → 23M
12:17 | 9:49/mi
24M
3:53:15
Rank: #21431 (+131)
23M → 24M
9:20 | 9:20/mi
40K· 24.85 mi
4:01:48
Rank: #21374 (+57)
24M → 40K
8:33 | 10:00/mi
25.2M
4:05:52
Rank: #21383 (-9)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:15:45
Rank: #21352 (+31)
25.2M → Finish
9:53 | 9:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:37
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:13:08
Pace10:09 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2230:029:4030:02
9:40
-
10K
6.21 mi12:23:0359:439:3729:41
9:33
-0:07
15K
9.32 mi12:51:211:28:019:2728:18
9:07
-0:26
20K
12.43 mi13:19:371:56:179:2128:16
9:06
-0:01
Half
13.11 mi13:25:572:02:379:216:20
9:17
+0:11
25K
15.53 mi13:49:442:26:249:2523:47
9:49
+0:32
30K
18.64 mi14:22:232:59:039:3632:39
10:31
+0:42
20M
20.00 mi14:36:443:13:249:4014:21
10:34
+0:03
21M
21.00 mi14:47:493:24:299:4411:05
11:05
+0:31
35K
21.75 mi14:54:583:31:389:447:09
9:33
-1:32
23M
23.00 mi15:07:153:43:559:4412:17
9:49
+0:16
24M
24.00 mi15:16:353:53:159:439:20
9:20
-0:29
40K
24.85 mi15:25:084:01:489:448:33
10:00
+0:40
25.2M
25.20 mi15:29:124:05:529:454:04
11:48
+1:48
Finish
26.22 mi15:39:054:15:459:469:53
9:42
-2:06

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

9:06 /mi

Average Pace

9:46 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:54

25% of race

Time at Steady Pace

2:10:42

51% of race

Time at Slower Pace

1:02:09

24% of race

Average Pace: 9:45 /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 mi11:53:2230:029:4030:02
9:40
#22557
10K
6.21 mi12:23:0359:439:3729:41
9:33
#22634
15K
9.32 mi12:51:211:28:019:2728:18
9:07
#22129
20K
12.43 mi13:19:371:56:179:2128:16
9:06
#21689
Half
13.11 mi13:25:572:02:379:216:20
9:17
#21678
25K
15.53 mi13:49:442:26:249:2523:47
9:49
#21651
30K
18.64 mi14:22:232:59:039:3632:39
10:31
#21756
20M
20.00 mi14:36:443:13:249:4014:21
10:34
#21786
21M
21.00 mi14:47:493:24:299:4411:05
11:05
#21756
35K
21.75 mi14:54:583:31:389:447:09
9:33
#21704
23M
23.00 mi15:07:153:43:559:4412:17
9:49
#21562
24M
24.00 mi15:16:353:53:159:439:20
9:20
#21431
40K
24.85 mi15:25:084:01:489:448:33
10:00
#21374
25.2M
25.20 mi15:29:124:05:529:454:04
11:48
#21383
Finish
26.22 mi15:39:054:15:459:469:53
9:42
#21352
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22557133721337220970(Top 79%)12733(Top 84%)12733(Top 241%)
10K6.21 mi3.10 mi22634-7713448-7613448-7622656(Top 85%)13459(Top 89%)13459(Top 255%)
15K9.32 mi3.11 mi22129+50513203+24513203+24520970(Top 79%)12733(Top 84%)12733(Top 241%)
20K12.43 mi3.11 mi21689+44013014+18913014+18920134(Top 76%)12369(Top 82%)12369(Top 234%)
Half13.11 mi0.68 mi21678+1113005+913005+921423(Top 80%)12927(Top 85%)12927(Top 245%)
25K15.53 mi2.42 mi21651+2713003+213003+221753(Top 82%)13025(Top 86%)13025(Top 246%)
30K18.64 mi3.11 mi21756-10513040-3713040-3722225(Top 83%)13173(Top 87%)13173(Top 249%)
20M20.00 mi1.36 mi21786-3013037+313037+321865(Top 82%)12940(Top 85%)12940(Top 245%)
21M21.00 mi1.00 mi21756+3013015+2213015+2220994(Top 79%)12517(Top 82%)12517(Top 237%)
35K21.75 mi0.75 mi21704+5212982+3312982+3320025(Top 75%)12059(Top 79%)12059(Top 228%)
23M23.00 mi1.25 mi21562+14212903+7912903+7919458(Top 73%)11778(Top 78%)11778(Top 223%)
24M24.00 mi1.00 mi21431+13112835+6812835+6818599(Top 70%)11360(Top 75%)11360(Top 215%)
40K24.85 mi0.85 mi21374+5712796+3912796+3919950(Top 75%)11897(Top 78%)11897(Top 225%)
25.2M25.20 mi0.35 mi21383-912799-312799-322112(Top 83%)12902(Top 85%)12902(Top 244%)
Finish26.22 mi1.02 mi21352+3112773+2612773+2620782(Top 78%)12311(Top 81%)12311(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

20970

Males

12733

M18-39

12733

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

22656

Males

13459

M18-39

13459

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

20970

Males

12733

M18-39

12733

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20134

Males

12369

M18-39

12369

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

21423

Males

12927

M18-39

12927

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

21753

Males

13025

M18-39

13025

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22225

Males

13173

M18-39

13173

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21865

Males

12940

M18-39

12940

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

20994

Males

12517

M18-39

12517

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

20025

Males

12059

M18-39

12059

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19458

Males

11778

M18-39

11778

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

18599

Males

11360

M18-39

11360

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19950

Males

11897

M18-39

11897

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22112

Males

12902

M18-39

12902

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20782

Males

12311

M18-39

12311

Passing Analysis

Category:
Athletes Passed
2051
Passed By
846
Net Change
+1205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22557
5K → 10K206283-77#22557#22634
10K → 15K51611+505#22634#22129
15K → 20K4488+440#22129#21689
20K → Half3221+11#21689#21678
Half → 25K12093+27#21678#21651
25K → 30K104209-105#21651#21756
30K → 20M5585-30#21756#21786
20M → 21M6838+30#21786#21756
21M → 35K586+52#21756#21704
35K → 23M15412+142#21704#21562
23M → 24M1332+131#21562#21431
24M → 40K8124+57#21431#21374
40K → 25.2M2130-9#21374#21383
25.2M → Finish5524+31#21383#21352
TOTALS2051846+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