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BOSTON MARATHON 2023

Viet Nguyen

Bib: 8507•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 32%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:08
Rank: #7026
Start → 5K
7:07/mi
22:08 split
10K· 6.21 mi
44:41
Rank: #7702 (-676)
5K → 10K
7:15/mi
22:33 split
15K· 9.32 mi
1:07:30
Rank: #8054 (-352)
10K → 15K
7:21/mi
22:49 split
20K· 12.43 mi
1:30:26
Rank: #8085 (-31)
15K → 20K
7:23/mi
22:56 split
Half· 13.11 mi
1:35:18
Rank: #8038 (+47)
20K → Half
7:08/mi
4:52 split
25K· 15.53 mi
1:53:24
Rank: #8072 (-34)
Half → 25K
7:28/mi
18:06 split
30K· 18.64 mi
2:17:00
Rank: #8013 (+59)
25K → 30K
7:36/mi
23:36 split
20M
2:27:31
Rank: #7981 (+32)
30K → 20M
7:44/mi
10:31 split
21M
2:35:46
Rank: #8009 (-28)
20M → 21M
8:15/mi
8:15 split
35K· 21.75 mi
2:41:32
Rank: #8074 (-65)
21M → 35K
7:42/mi
5:46 split
23M
2:51:51
Rank: #8236 (-162)
35K → 23M
8:14/mi
10:19 split
24M
2:59:01
Rank: #8075 (+161)
23M → 24M
7:10/mi
7:10 split
40K· 24.85 mi
3:05:24
Rank: #7977 (+98)
24M → 40K
7:28/mi
6:23 split
25.2M
3:08:20
Rank: #8004 (-27)
40K → 25.2M
8:30/mi
2:56 split
Finish· 26.22 mi
3:16:19
Rank: #8110 (-106)
25.2M → Finish
7:50/mi
7:59 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:18
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:41:01
Pace7:42 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4822:087:0722:08
7:07
-
10K
6.21 mi11:15:2144:417:1122:33
7:15
+0:08
15K
9.32 mi11:38:101:07:307:1522:49
7:21
+0:06
20K
12.43 mi12:01:061:30:267:1722:56
7:23
+0:02
Half
13.11 mi12:05:581:35:187:164:52
7:08
-0:15
25K
15.53 mi12:24:041:53:247:1818:06
7:28
+0:20
30K
18.64 mi12:47:402:17:007:2123:36
7:36
+0:08
20M
20.00 mi12:58:112:27:317:2310:31
7:44
+0:08
21M
21.00 mi13:06:262:35:467:258:15
8:15
+0:31
35K
21.75 mi13:12:122:41:327:265:46
7:42
-0:33
23M
23.00 mi13:22:312:51:517:2810:19
8:14
+0:32
24M
24.00 mi13:29:412:59:017:287:10
7:10
-1:04
40K
24.85 mi13:36:043:05:247:286:23
7:28
+0:18
25.2M
25.20 mi13:39:003:08:207:282:56
8:30
+1:02
Finish
26.22 mi13:46:593:16:197:307:59
7:50
-0:40

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

7:07 /mi

Average Pace

7:30 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:50

85% of race

Time at Steady Pace

26:33

14% of race

Time at Slower Pace

2:56

1% of race

Average Pace: 7:29 /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 mi10:52:4822:087:0722:08
7:07
#7026
10K
6.21 mi11:15:2144:417:1122:33
7:15
#7702
15K
9.32 mi11:38:101:07:307:1522:49
7:21
#8054
20K
12.43 mi12:01:061:30:267:1722:56
7:23
#8085
Half
13.11 mi12:05:581:35:187:164:52
7:08
#8038
25K
15.53 mi12:24:041:53:247:1818:06
7:28
#8072
30K
18.64 mi12:47:402:17:007:2123:36
7:36
#8013
20M
20.00 mi12:58:112:27:317:2310:31
7:44
#7981
21M
21.00 mi13:06:262:35:467:258:15
8:15
#8009
35K
21.75 mi13:12:122:41:327:265:46
7:42
#8074
23M
23.00 mi13:22:312:51:517:2810:19
8:14
#8236
24M
24.00 mi13:29:412:59:017:287:10
7:10
#8075
40K
24.85 mi13:36:043:05:247:286:23
7:28
#7977
25.2M
25.20 mi13:39:003:08:207:282:56
8:30
#8004
Finish
26.22 mi13:46:593:16:197:307:59
7:50
#8110
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7026629162918893(Top 33%)7470(Top 49%)7470(Top 333%)
10K6.21 mi3.10 mi7702-6766775-4846775-4848532(Top 32%)7278(Top 48%)7278(Top 325%)
15K9.32 mi3.11 mi8054-3526985-2106985-2108893(Top 33%)7470(Top 49%)7470(Top 333%)
20K12.43 mi3.11 mi8085-316997-126997-128363(Top 31%)7106(Top 47%)7106(Top 317%)
Half13.11 mi0.68 mi8038+476957+406957+407381(Top 28%)6501(Top 43%)6501(Top 290%)
25K15.53 mi2.42 mi8072-346960-36960-38508(Top 32%)7138(Top 47%)7138(Top 319%)
30K18.64 mi3.11 mi8013+596883+776883+777912(Top 30%)6634(Top 44%)6634(Top 296%)
20M20.00 mi1.36 mi7981+326846+376846+378415(Top 32%)6840(Top 45%)6840(Top 305%)
21M21.00 mi1.00 mi8009-286848-26848-28875(Top 33%)6989(Top 46%)6989(Top 312%)
35K21.75 mi0.75 mi8074-656875-276875-279932(Top 37%)7586(Top 50%)7586(Top 339%)
23M23.00 mi1.25 mi8236-1626953-786953-7811434(Top 43%)8181(Top 54%)8181(Top 365%)
24M24.00 mi1.00 mi8075+1616832+1216832+1215568(Top 21%)4830(Top 32%)4830(Top 216%)
40K24.85 mi0.85 mi7977+986755+776755+776496(Top 24%)5342(Top 35%)5342(Top 238%)
25.2M25.20 mi0.35 mi8004-276757-26757-29473(Top 36%)6999(Top 46%)6999(Top 312%)
Finish26.22 mi1.02 mi8110-1066808-516808-5110898(Top 41%)7735(Top 51%)7735(Top 345%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8893

Males

7470

M40-44

7470

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8532

Males

7278

M40-44

7278

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8893

Males

7470

M40-44

7470

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8363

Males

7106

M40-44

7106

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7381

Males

6501

M40-44

6501

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8508

Males

7138

M40-44

7138

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

7912

Males

6634

M40-44

6634

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8415

Males

6840

M40-44

6840

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

8875

Males

6989

M40-44

6989

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9932

Males

7586

M40-44

7586

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11434

Males

8181

M40-44

8181

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5568

Males

4830

M40-44

4830

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6496

Males

5342

M40-44

5342

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9473

Males

6999

M40-44

6999

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10898

Males

7735

M40-44

7735

Passing Analysis

Category:
Athletes Passed
1047
Passed By
2131
Net Change
-1084
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7026
5K → 10K35711-676#7026#7702
10K → 15K37389-352#7702#8054
15K → 20K117148-31#8054#8085
20K → Half503+47#8085#8038
Half → 25K88122-34#8038#8072
25K → 30K15899+59#8072#8013
30K → 20M9967+32#8013#7981
20M → 21M6694-28#7981#8009
21M → 35K2691-65#8009#8074
35K → 23M43205-162#8074#8236
23M → 24M1676+161#8236#8075
24M → 40K11214+98#8075#7977
40K → 25.2M1845-27#7977#8004
25.2M → Finish31137-106#8004#8110
TOTALS10472131-1084
📊

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