Boston Marathon logo
BOSTON MARATHON 2023

Yuanjin Chen

Bib: 20982•M

CT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:42
Rank: #18180
Start → 5K
26:42 | 8:36/mi
10K· 6.21 mi
53:11
Rank: #18244 (-64)
5K → 10K
26:29 | 8:31/mi
15K· 9.32 mi
1:19:50
Rank: #18259 (-15)
10K → 15K
26:39 | 8:35/mi
20K· 12.43 mi
1:46:58
Rank: #18245 (+14)
15K → 20K
27:08 | 8:44/mi
Half· 13.11 mi
1:52:52
Rank: #18268 (-23)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:14:04
Rank: #18146 (+122)
Half → 25K
21:12 | 8:45/mi
30K· 18.64 mi
2:42:14
Rank: #17992 (+154)
25K → 30K
28:10 | 9:04/mi
20M
2:55:05
Rank: #18061 (-69)
30K → 20M
12:51 | 9:27/mi
21M
3:05:14
Rank: #18083 (-22)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:11:39
Rank: #18013 (+70)
21M → 35K
6:25 | 8:35/mi
23M
3:23:56
Rank: #18139 (-126)
35K → 23M
12:17 | 9:49/mi
24M
3:32:45
Rank: #18059 (+80)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:40:27
Rank: #18003 (+56)
24M → 40K
7:42 | 9:00/mi
25.2M
3:44:23
Rank: #18085 (-82)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
3:53:29
Rank: #18085
25.2M → Finish
9:06 | 8:56/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:52
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:00:37
Pace9:12 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2726:428:3626:42
8:36
-
10K
6.21 mi11:45:5653:118:3426:29
8:31
-0:05
15K
9.32 mi12:12:351:19:508:3426:39
8:35
+0:04
20K
12.43 mi12:39:431:46:588:3627:08
8:44
+0:09
Half
13.11 mi12:45:371:52:528:375:54
8:39
-0:05
25K
15.53 mi13:06:492:14:048:3821:12
8:45
+0:06
30K
18.64 mi13:34:592:42:148:4228:10
9:04
+0:19
20M
20.00 mi13:47:502:55:058:4512:51
9:27
+0:23
21M
21.00 mi13:57:593:05:148:4910:09
10:09
+0:42
35K
21.75 mi14:04:243:11:398:496:25
8:35
-1:34
23M
23.00 mi14:16:413:23:568:5212:17
9:49
+1:14
24M
24.00 mi14:25:303:32:458:528:49
8:49
-1:00
40K
24.85 mi14:33:123:40:278:527:42
9:00
+0:11
25.2M
25.20 mi14:37:083:44:238:543:56
11:24
+2:24
Finish
26.22 mi14:46:143:53:298:559:06
8:56
-2:28

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

8:31 /mi

Average Pace

8:55 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:14:16

83% of race

Time at Slower Pace

39:13

17% of race

Average Pace: 8:54 /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 mi11:19:2726:428:3626:42
8:36
#18180
10K
6.21 mi11:45:5653:118:3426:29
8:31
#18244
15K
9.32 mi12:12:351:19:508:3426:39
8:35
#18259
20K
12.43 mi12:39:431:46:588:3627:08
8:44
#18245
Half
13.11 mi12:45:371:52:528:375:54
8:39
#18268
25K
15.53 mi13:06:492:14:048:3821:12
8:45
#18146
30K
18.64 mi13:34:592:42:148:4228:10
9:04
#17992
20M
20.00 mi13:47:502:55:058:4512:51
9:27
#18061
21M
21.00 mi13:57:593:05:148:4910:09
10:09
#18083
35K
21.75 mi14:04:243:11:398:496:25
8:35
#18013
23M
23.00 mi14:16:413:23:568:5212:17
9:49
#18139
24M
24.00 mi14:25:303:32:458:528:49
8:49
#18059
40K
24.85 mi14:33:123:40:278:527:42
9:00
#18003
25.2M
25.20 mi14:37:083:44:238:543:56
11:24
#18085
Finish
26.22 mi14:46:143:53:298:559:06
8:56
#18085
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18180114901149018298(Top 69%)11604(Top 76%)11604(Top 1045%)
10K6.21 mi3.10 mi18244-6411558-6811558-6818391(Top 69%)11660(Top 77%)11660(Top 1050%)
15K9.32 mi3.11 mi18259-1511569-1111569-1118298(Top 69%)11604(Top 76%)11604(Top 1045%)
20K12.43 mi3.11 mi18245+1411567+211567+218315(Top 69%)11613(Top 77%)11613(Top 1046%)
Half13.11 mi0.68 mi18268-2311575-811575-818565(Top 70%)11726(Top 77%)11726(Top 1056%)
25K15.53 mi2.42 mi18146+12211505+7011505+7017613(Top 66%)11245(Top 74%)11245(Top 1013%)
30K18.64 mi3.11 mi17992+15411413+9211413+9217510(Top 66%)11127(Top 73%)11127(Top 1002%)
20M20.00 mi1.36 mi18061-6911415-211415-218678(Top 70%)11533(Top 76%)11533(Top 1039%)
21M21.00 mi1.00 mi18083-2211417-211417-218536(Top 70%)11444(Top 75%)11444(Top 1031%)
35K21.75 mi0.75 mi18013+7011387+3011387+3015727(Top 59%)10182(Top 67%)10182(Top 917%)
23M23.00 mi1.25 mi18139-12611425-3811425-3819450(Top 73%)11770(Top 78%)11770(Top 1060%)
24M24.00 mi1.00 mi18059+8011372+5311372+5316282(Top 61%)10306(Top 68%)10306(Top 928%)
40K24.85 mi0.85 mi18003+5611339+3311339+3316153(Top 61%)10197(Top 67%)10197(Top 919%)
25.2M25.20 mi0.35 mi18085-8211370-3111370-3121321(Top 80%)12528(Top 83%)12528(Top 1129%)
Finish26.22 mi1.02 mi1808511364+611364+617608(Top 66%)10879(Top 72%)10879(Top 980%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18298

Males

11604

M60-64

11604

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18391

Males

11660

M60-64

11660

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18298

Males

11604

M60-64

11604

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

18315

Males

11613

M60-64

11613

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18565

Males

11726

M60-64

11726

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17613

Males

11245

M60-64

11245

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17510

Males

11127

M60-64

11127

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18678

Males

11533

M60-64

11533

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18536

Males

11444

M60-64

11444

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15727

Males

10182

M60-64

10182

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19450

Males

11770

M60-64

11770

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16282

Males

10306

M60-64

10306

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16153

Males

10197

M60-64

10197

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21321

Males

12528

M60-64

12528

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17608

Males

10879

M60-64

10879

Passing Analysis

Category:
Athletes Passed
1640
Passed By
1545
Net Change
+95
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18180
5K → 10K277341-64#18180#18244
10K → 15K179194-15#18244#18259
15K → 20K172158+14#18259#18245
20K → Half1942-23#18245#18268
Half → 25K18967+122#18268#18146
25K → 30K266112+154#18146#17992
30K → 20M67136-69#17992#18061
20M → 21M93115-22#18061#18083
21M → 35K8313+70#18083#18013
35K → 23M43169-126#18013#18139
23M → 24M10525+80#18139#18059
24M → 40K8024+56#18059#18003
40K → 25.2M991-82#18003#18085
25.2M → Finish58580#18085#18085
TOTALS16401545+95
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing