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BOSTON MARATHON 2023

Tin Nguyen

Bib: 15287•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 (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
8:21/mi
25:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:27/mi
52:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:18:57
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:45:16
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:50:59
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:11:34
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:40:01
↑ 181↓ 1480.2%
20M
9:25/mi
2:52:49
↑ 64↓ 500.2%
21M
10:42/mi
3:03:31
↑ 106↓ 241.6%
35K· 21.75 mi
9:55/mi
3:10:56
↑ 17↓ 861.7%
23M
10:57/mi
3:24:39
↑ 23↓ 630.6%
24M
9:24/mi
3:34:03
↓ 821.3%
40K· 24.85 mi
10:19/mi
3:42:52
↓ 200.3%
25.2M
11:30/mi
3:46:50
↑ 13↓ 160.2%
Finish· 26.22 mi
9:05/mi
3:56:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:59
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:05:06
Pace9:33 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4625:578:2125:57
8:21
-
10K
6.21 mi11:43:0252:138:2426:16
8:27
+0:06
15K
9.32 mi12:09:461:18:578:2826:44
8:36
+0:09
20K
12.43 mi12:36:051:45:168:2826:19
8:28
-0:08
Half
13.11 mi12:41:481:50:598:285:43
8:23
-0:05
25K
15.53 mi13:02:232:11:348:2820:35
8:29
+0:06
30K
18.64 mi13:30:502:40:018:3528:27
9:09
+0:40
20M
20.00 mi13:43:382:52:498:3812:48
9:25
+0:16
21M
21.00 mi13:54:203:03:318:4410:42
10:42
+1:17
35K
21.75 mi14:01:453:10:568:477:25
9:55
-0:47
23M
23.00 mi14:15:283:24:398:5413:43
10:57
+1:02
24M
24.00 mi14:24:523:34:038:559:24
9:24
-1:33
40K
24.85 mi14:33:413:42:528:588:49
10:19
+0:55
25.2M
25.20 mi14:37:393:46:509:003:58
11:30
+1:11
Finish
26.22 mi14:46:543:56:059:019:15
9:05
-2:25

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

8:21 /mi

Average Pace

9:01 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:34

56% of race

Time at Steady Pace

59:54

25% of race

Time at Slower Pace

44:37

19% of race

Average Pace: 9:00 /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 mi11:16:4625:578:2125:57
8:21
#16511
10K
6.21 mi11:43:0252:138:2426:16
8:27
#17231
15K
9.32 mi12:09:461:18:578:2826:44
8:36
#17658
20K
12.43 mi12:36:051:45:168:2826:19
8:28
#17376
Half
13.11 mi12:41:481:50:598:285:43
8:23
#17355
25K
15.53 mi13:02:232:11:348:2820:35
8:29
#17152
30K
18.64 mi13:30:502:40:018:3528:27
9:09
#17263
20M
20.00 mi13:43:382:52:498:3812:48
9:25
#17367
21M
21.00 mi13:54:203:03:318:4410:42
10:42
#17623
35K
21.75 mi14:01:453:10:568:477:25
9:55
#17815
23M
23.00 mi14:15:283:24:398:5413:43
10:57
#18296
24M
24.00 mi14:24:523:34:038:559:24
9:24
#18334
40K
24.85 mi14:33:413:42:528:588:49
10:19
#18483
25.2M
25.20 mi14:37:393:46:509:003:58
11:30
#18576
Finish
26.22 mi14:46:543:56:059:019:15
9:05
#18574
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi16511108851088518468(Top 69%)11671(Top 77%)11671(Top 569%)
10K6.21 mi3.10 mi17231-72011137-25211137-25217952(Top 67%)11484(Top 76%)11484(Top 560%)
15K9.32 mi3.11 mi17658-42711328-19111328-19118468(Top 69%)11671(Top 77%)11671(Top 569%)
20K12.43 mi3.11 mi17376+28211212+11611212+11616662(Top 63%)10910(Top 72%)10910(Top 532%)
Half13.11 mi0.68 mi17355+2111200+1211200+1216988(Top 64%)11086(Top 73%)11086(Top 540%)
25K15.53 mi2.42 mi17152+20311097+10311097+10316127(Top 61%)10596(Top 70%)10596(Top 516%)
30K18.64 mi3.11 mi17263-11111126-2911126-2917959(Top 67%)11314(Top 75%)11314(Top 551%)
20M20.00 mi1.36 mi17367-10411149-2311149-2318526(Top 70%)11461(Top 76%)11461(Top 559%)
21M21.00 mi1.00 mi17623-25611236-8711236-8720134(Top 76%)12111(Top 80%)12111(Top 590%)
35K21.75 mi0.75 mi17815-19211307-7111307-7121016(Top 79%)12489(Top 82%)12489(Top 609%)
23M23.00 mi1.25 mi18296-48111487-18011487-18022249(Top 84%)13034(Top 86%)13034(Top 635%)
24M24.00 mi1.00 mi18334-3811493-611493-618838(Top 71%)11462(Top 76%)11462(Top 559%)
40K24.85 mi0.85 mi18483-14911553-6011553-6020759(Top 78%)12263(Top 81%)12263(Top 598%)
25.2M25.20 mi0.35 mi18576-9311586-3311586-3321534(Top 81%)12625(Top 83%)12625(Top 615%)
Finish26.22 mi1.02 mi18574+211573+1311573+1318349(Top 69%)11242(Top 74%)11242(Top 548%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18468

Males

11671

M50-54

11671

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17952

Males

11484

M50-54

11484

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18468

Males

11671

M50-54

11671

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16662

Males

10910

M50-54

10910

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16988

Males

11086

M50-54

11086

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16127

Males

10596

M50-54

10596

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17959

Males

11314

M50-54

11314

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18526

Males

11461

M50-54

11461

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20134

Males

12111

M50-54

12111

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

21016

Males

12489

M50-54

12489

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22249

Males

13034

M50-54

13034

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18838

Males

11462

M50-54

11462

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20759

Males

12263

M50-54

12263

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21534

Males

12625

M50-54

12625

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18349

Males

11242

M50-54

11242

Passing Analysis

Category:
Athletes Passed
1146
Passed By
3209
Net Change
-2063
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16511
5K → 10K96816-720#16511#17231
10K → 15K76503-427#17231#17658
15K → 20K33351+282#17658#17376
20K → Half3918+21#17376#17355
Half → 25K23633+203#17355#17152
25K → 30K132243-111#17152#17263
30K → 20M55159-104#17263#17367
20M → 21M27283-256#17367#17623
21M → 35K17209-192#17623#17815
35K → 23M14495-481#17815#18296
23M → 24M4179-38#18296#18334
24M → 40K16165-149#18334#18483
40K → 25.2M8101-93#18483#18576
25.2M → Finish5654+2#18576#18574
TOTALS11463209-2063
📊

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