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BOSTON MARATHON 2023

Don Nguyen

Bib: 4857•M

QC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
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
21:04
Rank: #4486
Start → 5K
21:04 | 6:47/mi
10K· 6.21 mi
41:52
Rank: #4356 (+130)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:02:44
Rank: #4321 (+35)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:23:39
Rank: #4175 (+146)
15K → 20K
20:55 | 6:44/mi
Half· 13.11 mi
1:28:11
Rank: #4152 (+23)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:16
Rank: #3879 (+273)
Half → 25K
16:05 | 6:38/mi
30K· 18.64 mi
2:05:46
Rank: #3823 (+56)
25K → 30K
21:30 | 6:55/mi
20M
2:15:12
Rank: #3769 (+54)
30K → 20M
9:26 | 6:57/mi
21M
2:22:32
Rank: #3754 (+15)
20M → 21M
7:20 | 7:20/mi
35K· 21.75 mi
2:27:42
Rank: #3797 (-43)
21M → 35K
5:10 | 6:54/mi
23M
2:36:44
Rank: #3882 (-85)
35K → 23M
9:02 | 7:13/mi
24M
2:43:49
Rank: #3968 (-86)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
2:50:10
Rank: #4086 (-118)
24M → 40K
6:21 | 7:26/mi
25.2M
2:52:48
Rank: #4096 (-10)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:59:57
Rank: #4181 (-85)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:11
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:31:46
Pace7:00 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5421:046:4721:04
6:47
-
10K
6.21 mi10:44:4241:526:4420:48
6:42
-0:05
15K
9.32 mi11:05:341:02:446:4420:52
6:43
+0:01
20K
12.43 mi11:26:291:23:396:4420:55
6:44
+0:01
Half
13.11 mi11:31:011:28:116:444:32
6:39
-0:05
25K
15.53 mi11:47:061:44:166:4316:05
6:38
-0:01
30K
18.64 mi12:08:362:05:466:4521:30
6:55
+0:17
20M
20.00 mi12:18:022:15:126:469:26
6:57
+0:02
21M
21.00 mi12:25:222:22:326:477:20
7:20
+0:23
35K
21.75 mi12:30:322:27:426:475:10
6:54
-0:26
23M
23.00 mi12:39:342:36:446:499:02
7:13
+0:19
24M
24.00 mi12:46:392:43:496:507:05
7:05
-0:08
40K
24.85 mi12:53:002:50:106:516:21
7:26
+0:21
25.2M
25.20 mi12:55:382:52:486:512:38
7:38
+0:12
Finish
26.22 mi13:02:472:59:576:527:09
7:01
-0:37

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

6:38 /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

2:43:38

91% of race

Time at Steady Pace

16:19

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:52 /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 mi10:23:5421:046:4721:04
6:47
#4486
10K
6.21 mi10:44:4241:526:4420:48
6:42
#4356
15K
9.32 mi11:05:341:02:446:4420:52
6:43
#4321
20K
12.43 mi11:26:291:23:396:4420:55
6:44
#4175
Half
13.11 mi11:31:011:28:116:444:32
6:39
#4152
25K
15.53 mi11:47:061:44:166:4316:05
6:38
#3879
30K
18.64 mi12:08:362:05:466:4521:30
6:55
#3823
20M
20.00 mi12:18:022:15:126:469:26
6:57
#3769
21M
21.00 mi12:25:222:22:326:477:20
7:20
#3754
35K
21.75 mi12:30:322:27:426:475:10
6:54
#3797
23M
23.00 mi12:39:342:36:446:499:02
7:13
#3882
24M
24.00 mi12:46:392:43:496:507:05
7:05
#3968
40K
24.85 mi12:53:002:50:106:516:21
7:26
#4086
25.2M
25.20 mi12:55:382:52:486:512:38
7:38
#4096
Finish
26.22 mi13:02:472:59:576:527:09
7:01
#4181
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4486418841884283(Top 16%)4013(Top 26%)4013(Top 76%)
10K6.21 mi3.10 mi4356+1304080+1084080+1084281(Top 16%)4009(Top 26%)4009(Top 76%)
15K9.32 mi3.11 mi4321+354047+334047+334283(Top 16%)4013(Top 26%)4013(Top 76%)
20K12.43 mi3.11 mi4175+1463917+1303917+1303825(Top 14%)3607(Top 24%)3607(Top 68%)
Half13.11 mi0.68 mi4152+233897+203897+203829(Top 14%)3613(Top 24%)3613(Top 68%)
25K15.53 mi2.42 mi3879+2733657+2403657+2402926(Top 11%)2796(Top 18%)2796(Top 53%)
30K18.64 mi3.11 mi3823+563605+523605+523789(Top 14%)3553(Top 23%)3553(Top 67%)
20M20.00 mi1.36 mi3769+543557+483557+483678(Top 14%)3430(Top 23%)3430(Top 65%)
21M21.00 mi1.00 mi3754+153539+183539+183790(Top 14%)3513(Top 23%)3513(Top 66%)
35K21.75 mi0.75 mi3797-433575-363575-364778(Top 18%)4314(Top 28%)4314(Top 82%)
23M23.00 mi1.25 mi3882-853653-783653-784851(Top 18%)4350(Top 29%)4350(Top 82%)
24M24.00 mi1.00 mi3968-863717-643717-645073(Top 19%)4473(Top 29%)4473(Top 85%)
40K24.85 mi0.85 mi4086-1183823-1063823-1066203(Top 23%)5138(Top 34%)5138(Top 97%)
25.2M25.20 mi0.35 mi4096-103835-123835-124509(Top 17%)3922(Top 26%)3922(Top 74%)
Finish26.22 mi1.02 mi4181-853908-733908-735280(Top 20%)4460(Top 29%)4460(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4283

Males

4013

M18-39

4013

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4281

Males

4009

M18-39

4009

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4283

Males

4013

M18-39

4013

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3825

Males

3607

M18-39

3607

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3829

Males

3613

M18-39

3613

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2926

Males

2796

M18-39

2796

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3789

Males

3553

M18-39

3553

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3678

Males

3430

M18-39

3430

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3790

Males

3513

M18-39

3513

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4778

Males

4314

M18-39

4314

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4851

Males

4350

M18-39

4350

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5073

Males

4473

M18-39

4473

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6203

Males

5138

M18-39

5138

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4509

Males

3922

M18-39

3922

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5280

Males

4460

M18-39

4460

Passing Analysis

Category:
Athletes Passed
1335
Passed By
1030
Net Change
+305
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4486
5K → 10K272142+130#4486#4356
10K → 15K146111+35#4356#4321
15K → 20K17529+146#4321#4175
20K → Half329+23#4175#4152
Half → 25K2785+273#4152#3879
25K → 30K13983+56#3879#3823
30K → 20M8430+54#3823#3769
20M → 21M6651+15#3769#3754
21M → 35K1558-43#3754#3797
35K → 23M34119-85#3797#3882
23M → 24M33119-86#3882#3968
24M → 40K21139-118#3968#4086
40K → 25.2M2131-10#4086#4096
25.2M → Finish19104-85#4096#4181
TOTALS13351030+305
📊

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