Boston Marathon logo
BOSTON MARATHON 2023

Yingwei Liu

Bib: 2520•M

WA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 30%
Division (M50-54)
#0 / 2052
Top 25%
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
7:30/mi
23:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
45:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:17/mi
1:08:22
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:31:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:36:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:54:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:30/mi
2:17:37
↑ 181↓ 1480.2%
20M
7:24/mi
2:27:40
↑ 64↓ 500.2%
21M
8:07/mi
2:35:47
↑ 106↓ 241.6%
35K· 21.75 mi
7:16/mi
2:41:13
↑ 17↓ 861.7%
23M
7:34/mi
2:50:42
↑ 23↓ 630.6%
24M
7:20/mi
2:58:02
↓ 821.3%
40K· 24.85 mi
7:24/mi
3:04:22
↓ 200.3%
25.2M
7:56/mi
3:07:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:27/mi
3:14:42
↑ 22↓ 21

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
Time1:36:24
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:38:18
Pace7:30 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5823:187:3023:18
7:30
-
10K
6.21 mi11:13:2545:457:2222:27
7:14
-0:16
15K
9.32 mi11:36:021:08:227:2022:37
7:17
+0:03
20K
12.43 mi11:59:071:31:277:2223:05
7:26
+0:09
Half
13.11 mi12:04:041:36:247:214:57
7:15
-0:11
25K
15.53 mi12:21:591:54:197:2217:55
7:23
+0:08
30K
18.64 mi12:45:172:17:377:2323:18
7:30
+0:07
20M
20.00 mi12:55:202:27:407:2310:03
7:24
-0:06
21M
21.00 mi13:03:272:35:477:258:07
8:07
+0:43
35K
21.75 mi13:08:532:41:137:255:26
7:16
-0:51
23M
23.00 mi13:18:222:50:427:259:29
7:34
+0:18
24M
24.00 mi13:25:422:58:027:257:20
7:20
-0:14
40K
24.85 mi13:32:023:04:227:256:20
7:24
+0:04
25.2M
25.20 mi13:34:463:07:067:252:44
7:56
+0:32
Finish
26.22 mi13:42:223:14:427:267:36
7:27
-0:29

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

7:14 /mi

Average Pace

7:26 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:35

96% of race

Time at Steady Pace

8:07

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:50:5823:187:3023:18
7:30
#9609
10K
6.21 mi11:13:2545:457:2222:27
7:14
#8903
15K
9.32 mi11:36:021:08:227:2022:37
7:17
#8723
20K
12.43 mi11:59:071:31:277:2223:05
7:26
#8681
Half
13.11 mi12:04:041:36:247:214:57
7:15
#8657
25K
15.53 mi12:21:591:54:197:2217:55
7:23
#8506
30K
18.64 mi12:45:172:17:377:2323:18
7:30
#8231
20M
20.00 mi12:55:202:27:407:2310:03
7:24
#8038
21M
21.00 mi13:03:272:35:477:258:07
8:07
#8014
35K
21.75 mi13:08:532:41:137:255:26
7:16
#7953
23M
23.00 mi13:18:222:50:427:259:29
7:34
#7855
24M
24.00 mi13:25:422:58:027:257:20
7:20
#7766
40K
24.85 mi13:32:023:04:227:256:20
7:24
#7674
25.2M
25.20 mi13:34:463:07:067:252:44
7:56
#7647
Finish
26.22 mi13:42:223:14:427:267:36
7:27
#7646
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9609792879288390(Top 32%)7168(Top 47%)7168(Top 349%)
10K6.21 mi3.10 mi8903+7067517+4117517+4118290(Top 31%)7138(Top 47%)7138(Top 348%)
15K9.32 mi3.11 mi8723+1807395+1227395+1228390(Top 32%)7168(Top 47%)7168(Top 349%)
20K12.43 mi3.11 mi8681+427361+347361+348730(Top 33%)7330(Top 48%)7330(Top 357%)
Half13.11 mi0.68 mi8657+247349+127349+128208(Top 31%)7022(Top 46%)7022(Top 342%)
25K15.53 mi2.42 mi8506+1517234+1157234+1157924(Top 30%)6753(Top 44%)6753(Top 329%)
30K18.64 mi3.11 mi8231+2757019+2157019+2157209(Top 27%)6202(Top 41%)6202(Top 302%)
20M20.00 mi1.36 mi8038+1936882+1376882+1376170(Top 23%)5422(Top 36%)5422(Top 264%)
21M21.00 mi1.00 mi8014+246851+316851+318087(Top 30%)6523(Top 43%)6523(Top 318%)
35K21.75 mi0.75 mi7953+616798+536798+536896(Top 26%)5830(Top 38%)5830(Top 284%)
23M23.00 mi1.25 mi7855+986713+856713+856896(Top 26%)5761(Top 38%)5761(Top 281%)
24M24.00 mi1.00 mi7766+896633+806633+806595(Top 25%)5485(Top 36%)5485(Top 267%)
40K24.85 mi0.85 mi7674+926563+706563+706135(Top 23%)5109(Top 34%)5109(Top 249%)
25.2M25.20 mi0.35 mi7647+276536+276536+276067(Top 23%)4998(Top 33%)4998(Top 244%)
Finish26.22 mi1.02 mi7646+16516+206516+208207(Top 31%)6280(Top 41%)6280(Top 306%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8390

Males

7168

M50-54

7168

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8290

Males

7138

M50-54

7138

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8390

Males

7168

M50-54

7168

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8730

Males

7330

M50-54

7330

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8208

Males

7022

M50-54

7022

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

7924

Males

6753

M50-54

6753

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7209

Males

6202

M50-54

6202

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6170

Males

5422

M50-54

5422

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8087

Males

6523

M50-54

6523

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

6896

Males

5830

M50-54

5830

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6896

Males

5761

M50-54

5761

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6595

Males

5485

M50-54

5485

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6135

Males

5109

M50-54

5109

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6067

Males

4998

M50-54

4998

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8207

Males

6280

M50-54

6280

Passing Analysis

Category:
Athletes Passed
2495
Passed By
532
Net Change
+1963
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9609
5K → 10K76256+706#9609#8903
10K → 15K24464+180#8903#8723
15K → 20K151109+42#8723#8681
20K → Half4016+24#8681#8657
Half → 25K17524+151#8657#8506
25K → 30K30530+275#8506#8231
30K → 20M20310+193#8231#8038
20M → 21M8258+24#8038#8014
21M → 35K7514+61#8014#7953
35K → 23M13032+98#7953#7855
23M → 24M11223+89#7855#7766
24M → 40K11119+92#7766#7674
40K → 25.2M4316+27#7674#7647
25.2M → Finish6261+1#7647#7646
TOTALS2495532+1963
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing