Boston Marathon logo
BOSTON MARATHON 2023

Robert Wong

CA

Bib: 18120 M

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:35/mi
26:39
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:56/mi
54:23
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:01/mi
1:22:25
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:13/mi
1:51:04
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:36/mi
1:56:56
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:57/mi
2:18:38
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:50/mi
2:46:05
↑ 181↓ 1480.2%
138 ft elev
20M
8:11/mi
2:57:12
↑ 64↓ 500.2%
148 ft elev
21M
8:46/mi
3:05:58
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:44/mi
3:11:45
↑ 17↓ 861.7%
156 ft elev
23M
8:31/mi
3:22:25
↑ 23↓ 630.6%
116 ft elev
24M
8:19/mi
3:30:44
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:42/mi
3:38:10
↓ 200.3%
20 ft elev
25.2M
9:31/mi
3:41:27
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:42/mi
3:50:19
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via Half
Distance13.11 mi
Time1:56:56
Pace8:55 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:53:23
Pace8:39 /mi
📊Negative Split: 3.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0426:398:3526:39
8:35
-
10K
6.21 mi11:22:4854:238:4527:44
8:56
+0:21
15K
9.32 mi11:50:501:22:258:5128:02
9:01
+0:05
20K
12.43 mi12:19:291:51:048:5628:39
9:13
+0:12
Half
13.11 mi12:25:211:56:568:555:52
8:36
-0:37
25K
15.53 mi12:47:032:18:388:5521:42
8:57
+0:21
30K
18.64 mi13:14:302:46:058:5527:27
8:50
-0:07
20M
20.00 mi13:25:372:57:128:5211:07
8:11
-0:39
21M
21.00 mi13:34:233:05:588:518:46
8:46
+0:35
35K
21.75 mi13:40:103:11:458:495:47
7:44
-1:02
23M
23.00 mi13:50:503:22:258:4810:40
8:31
+0:47
24M
24.00 mi13:59:093:30:448:478:19
8:19
-0:12
40K
24.85 mi14:06:353:38:108:477:26
8:42
+0:23
25.2M
25.20 mi14:09:523:41:278:473:17
9:31
+0:49
Finish
26.22 mi14:18:443:50:198:478:52
8:42
-0:49

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

7:44 /mi

Average Pace

8:47 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:13

11% of race

Time at Steady Pace

1:35:42

42% of race

Time at Slower Pace

1:49:24

47% of race

Average Pace: 8:47 /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 mi10:55:0426:398:3526:39
8:35
#18082
10K
6.21 mi11:22:4854:238:4527:44
8:56
#19414
15K
9.32 mi11:50:501:22:258:5128:02
9:01
#19819
20K
12.43 mi12:19:291:51:048:5628:39
9:13
#20045
Half
13.11 mi12:25:211:56:568:555:52
8:36
#19963
25K
15.53 mi12:47:032:18:388:5521:42
8:57
#19743
30K
18.64 mi13:14:302:46:058:5527:27
8:50
#19148
20M
20.00 mi13:25:372:57:128:5211:07
8:11
#18671
21M
21.00 mi13:34:233:05:588:518:46
8:46
#18310
35K
21.75 mi13:40:103:11:458:495:47
7:44
#18044
23M
23.00 mi13:50:503:22:258:4810:40
8:31
#17773
24M
24.00 mi13:59:093:30:448:478:19
8:19
#17589
40K
24.85 mi14:06:353:38:108:477:26
8:42
#17467
25.2M
25.20 mi14:09:523:41:278:473:17
9:31
#17432
Finish
26.22 mi14:18:443:50:198:478:52
8:42
#17411
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18082114541145420593(Top 77%)12560(Top 83%)12560(Top 1132%)
10K6.21 mi3.10 mi19414-133211984-53011984-53020541(Top 77%)12514(Top 82%)12514(Top 1127%)
15K9.32 mi3.11 mi19819-40512166-18212166-18220593(Top 77%)12560(Top 83%)12560(Top 1132%)
20K12.43 mi3.11 mi20045-22612278-11212278-11220649(Top 78%)12597(Top 83%)12597(Top 1135%)
Half13.11 mi0.68 mi19963+8212240+3812240+3818280(Top 69%)11599(Top 76%)11599(Top 1045%)
25K15.53 mi2.42 mi19743+22012151+8912151+8918698(Top 70%)11712(Top 77%)11712(Top 1055%)
30K18.64 mi3.11 mi19148+59511901+25011901+25016278(Top 61%)10601(Top 70%)10601(Top 955%)
20M20.00 mi1.36 mi18671+47711683+21811683+21811559(Top 43%)8522(Top 56%)8522(Top 768%)
21M21.00 mi1.00 mi18310+36111510+17311510+17312063(Top 45%)8621(Top 57%)8621(Top 777%)
35K21.75 mi0.75 mi18044+26611400+11011400+11010159(Top 38%)7719(Top 51%)7719(Top 695%)
23M23.00 mi1.25 mi17773+27111268+13211268+13213355(Top 50%)9078(Top 60%)9078(Top 818%)
24M24.00 mi1.00 mi17589+18411179+8911179+8913322(Top 50%)9021(Top 59%)9021(Top 813%)
40K24.85 mi0.85 mi17467+12211124+5511124+5514463(Top 54%)9448(Top 62%)9448(Top 851%)
25.2M25.20 mi0.35 mi17432+3511099+2511099+2515257(Top 57%)9798(Top 65%)9798(Top 883%)
Finish26.22 mi1.02 mi17411+2111080+1911080+1916479(Top 62%)10376(Top 68%)10376(Top 935%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20593

Males

12560

M60-64

12560

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20541

Males

12514

M60-64

12514

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20593

Males

12560

M60-64

12560

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20649

Males

12597

M60-64

12597

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18280

Males

11599

M60-64

11599

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18698

Males

11712

M60-64

11712

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

16278

Males

10601

M60-64

10601

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

11559

Males

8522

M60-64

8522

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12063

Males

8621

M60-64

8621

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10159

Males

7719

M60-64

7719

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13355

Males

9078

M60-64

9078

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13322

Males

9021

M60-64

9021

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14463

Males

9448

M60-64

9448

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15257

Males

9798

M60-64

9798

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16479

Males

10376

M60-64

10376

Passing Analysis

Category:
Athletes Passed
2985
Passed By
2314
Net Change
+671
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18082
5K → 10K441376-1332#18082#19414
10K → 15K65470-405#19414#19819
15K → 20K116342-226#19819#20045
20K → Half864+82#20045#19963
Half → 25K25232+220#19963#19743
25K → 30K6005+595#19743#19148
30K → 20M4770+477#19148#18671
20M → 21M3621+361#18671#18310
21M → 35K2660+266#18310#18044
35K → 23M2743+271#18044#17773
23M → 24M1862+184#17773#17589
24M → 40K13614+122#17589#17467
40K → 25.2M4712+35#17467#17432
25.2M → Finish7453+21#17432#17411
TOTALS29852314+671
📊

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