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BOSTON MARATHON 2023

Wa Kin Edward Ching

Bib: 12655•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M45-49)
#0 / 2252
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
7:23/mi
46:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:09:26
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:33:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:38:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:56:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:21:17
↑ 181↓ 1480.2%
20M
8:03/mi
2:32:13
↑ 64↓ 500.2%
21M
9:07/mi
2:41:20
↑ 106↓ 241.6%
35K· 21.75 mi
11:03/mi
2:49:36
↑ 17↓ 861.7%
23M
8:31/mi
3:00:16
↑ 23↓ 630.6%
24M
8:00/mi
3:08:16
↓ 821.3%
40K· 24.85 mi
9:42/mi
3:16:34
↓ 200.3%
25.2M
10:06/mi
3:20:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:28:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:15
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:50:23
Pace8:25 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0523:187:3023:18
7:30
-
10K
6.21 mi11:38:0046:137:2622:55
7:23
-0:07
15K
9.32 mi12:01:131:09:267:2723:13
7:28
+0:05
20K
12.43 mi12:24:571:33:107:3023:44
7:38
+0:10
Half
13.11 mi12:30:021:38:157:305:05
7:27
-0:11
25K
15.53 mi12:48:461:56:597:3218:44
7:44
+0:17
30K
18.64 mi13:13:042:21:177:3524:18
7:49
+0:05
20M
20.00 mi13:24:002:32:137:3710:56
8:03
+0:14
21M
21.00 mi13:33:072:41:207:419:07
9:07
+1:04
35K
21.75 mi13:41:232:49:367:488:16
11:03
+1:56
23M
23.00 mi13:52:033:00:167:5010:40
8:31
-2:32
24M
24.00 mi14:00:033:08:167:518:00
8:00
-0:31
40K
24.85 mi14:08:213:16:347:558:18
9:42
+1:42
25.2M
25.20 mi14:11:503:20:037:563:29
10:06
+0:24
Finish
26.22 mi14:20:253:28:387:588:35
8:25
-1:41

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

7:23 /mi

Average Pace

7:58 /mi

Slowest Pace

11:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:00

13% of race

Time at Steady Pace

2:31:28

73% of race

Time at Slower Pace

29:10

14% of race

Average Pace: 7:57 /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 mi11:15:0523:187:3023:18
7:30
#9655
10K
6.21 mi11:38:0046:137:2622:55
7:23
#9492
15K
9.32 mi12:01:131:09:267:2723:13
7:28
#9615
20K
12.43 mi12:24:571:33:107:3023:44
7:38
#9812
Half
13.11 mi12:30:021:38:157:305:05
7:27
#9809
25K
15.53 mi12:48:461:56:597:3218:44
7:44
#9897
30K
18.64 mi13:13:042:21:177:3524:18
7:49
#9817
20M
20.00 mi13:24:002:32:137:3710:56
8:03
#9826
21M
21.00 mi13:33:072:41:207:419:07
9:07
#10074
35K
21.75 mi13:41:232:49:367:488:16
11:03
#10960
23M
23.00 mi13:52:033:00:167:5010:40
8:31
#11115
24M
24.00 mi14:00:033:08:167:518:00
8:00
#11120
40K
24.85 mi14:08:213:16:347:558:18
9:42
#11560
25.2M
25.20 mi14:11:503:20:037:563:29
10:06
#11696
Finish
26.22 mi14:20:253:28:387:588:35
8:25
#11835
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9655795579559974(Top 37%)8126(Top 54%)8126(Top 361%)
10K6.21 mi3.10 mi9492+1637871+847871+849444(Top 35%)7823(Top 52%)7823(Top 347%)
15K9.32 mi3.11 mi9615-1237933-627933-629974(Top 37%)8126(Top 54%)8126(Top 361%)
20K12.43 mi3.11 mi9812-1978038-1058038-10510440(Top 39%)8304(Top 55%)8304(Top 369%)
Half13.11 mi0.68 mi9809+3803880389919(Top 37%)8033(Top 53%)8033(Top 357%)
25K15.53 mi2.42 mi9897-888072-348072-3410534(Top 40%)8262(Top 54%)8262(Top 367%)
30K18.64 mi3.11 mi9817+807996+767996+769542(Top 36%)7584(Top 50%)7584(Top 337%)
20M20.00 mi1.36 mi9826-97973+237973+2310650(Top 40%)8064(Top 53%)8064(Top 358%)
21M21.00 mi1.00 mi10074-2488078-1058078-10514094(Top 53%)9536(Top 63%)9536(Top 423%)
35K21.75 mi0.75 mi10960-8868488-4108488-41023414(Top 88%)13561(Top 89%)13561(Top 602%)
23M23.00 mi1.25 mi11115-1558546-588546-5813393(Top 50%)9081(Top 60%)9081(Top 403%)
24M24.00 mi1.00 mi11120-58517+298517+2911293(Top 42%)8026(Top 53%)8026(Top 356%)
40K24.85 mi0.85 mi11560-4408698-1818698-18119073(Top 72%)11509(Top 76%)11509(Top 511%)
25.2M25.20 mi0.35 mi11696-1368750-528750-5217868(Top 67%)10930(Top 72%)10930(Top 485%)
Finish26.22 mi1.02 mi11835-1398787-378787-3714939(Top 56%)9685(Top 64%)9685(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9974

Males

8126

M45-49

8126

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9444

Males

7823

M45-49

7823

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9974

Males

8126

M45-49

8126

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10440

Males

8304

M45-49

8304

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9919

Males

8033

M45-49

8033

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10534

Males

8262

M45-49

8262

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9542

Males

7584

M45-49

7584

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10650

Males

8064

M45-49

8064

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14094

Males

9536

M45-49

9536

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

23414

Males

13561

M45-49

13561

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13393

Males

9081

M45-49

9081

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11293

Males

8026

M45-49

8026

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19073

Males

11509

M45-49

11509

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17868

Males

10930

M45-49

10930

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14939

Males

9685

M45-49

9685

Passing Analysis

Category:
Athletes Passed
1201*
Passed By
3378
Net Change
-2180
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9655
5K → 10K380217+163#9655#9492
10K → 15K122245-123#9492#9615
15K → 20K93290-197#9615#9812
20K → Half2825+3#9812#9809
Half → 25K89176-88#9809#9897
25K → 30K195*115+80#9897#9817
30K → 20M8392-9#9817#9826
20M → 21M33279-248#9826#10074
21M → 35K3889-886#10074#10960
35K → 23M47202-155#10960#11115
23M → 24M7277-5#11115#11120
24M → 40K8448-440#11120#11560
40K → 25.2M6142-136#11560#11696
25.2M → Finish42181-139#11696#11835
TOTALS1201*3378-2180

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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