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BOSTON MARATHON 2023

Bing Liu

TX

Bib: 31910 M

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:50/mi
30:34
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
10:00/mi
1:01:37
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:13/mi
1:33:20
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
11:21/mi
2:08:35
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
13:03/mi
2:17:29
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
14:31/mi
2:52:42
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
14:46/mi
3:38:36
↑ 181↓ 1480.2%
138 ft elev
20M
14:36/mi
3:58:26
↑ 64↓ 500.2%
148 ft elev
21M
16:08/mi
4:14:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:51/mi
4:24:11
↑ 17↓ 861.7%
156 ft elev
23M
15:25/mi
4:43:29
↑ 23↓ 630.6%
116 ft elev
24M
13:42/mi
4:57:11
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:51/mi
5:08:10
↓ 200.3%
20 ft elev
25.2M
13:55/mi
5:12:58
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
13:25/mi
5:26:38
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:29
Pace10:29 /mi
2nd Half
Distance13.11 mi
Time3:09:09
Pace14:26 /mi
📊Positive Split: 37.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3030:349:5030:34
9:50
-
10K
6.21 mi12:21:331:01:379:5531:03
10:00
+0:10
15K
9.32 mi12:53:161:33:2010:0131:43
10:13
+0:13
20K
12.43 mi13:28:312:08:3510:2135:15
11:21
+1:08
Half
13.11 mi13:37:252:17:2910:298:54
13:03
+1:42
25K
15.53 mi14:12:382:52:4211:0735:13
14:31
+1:28
30K
18.64 mi14:58:323:38:3611:4445:54
14:46
+0:15
20M
20.00 mi15:18:223:58:2611:5519:50
14:36
-0:10
21M
21.00 mi15:34:304:14:3412:0716:08
16:08
+1:32
35K
21.75 mi15:44:074:24:1112:099:37
12:51
-3:17
23M
23.00 mi16:03:254:43:2912:2019:18
15:25
+2:34
24M
24.00 mi16:17:074:57:1112:2313:42
13:42
-1:43
40K
24.85 mi16:28:065:08:1012:2410:59
12:51
-0:51
25.2M
25.20 mi16:32:545:12:5812:254:48
13:55
+1:04
Finish
26.22 mi16:46:345:26:3812:2813:40
13:25
-0:30

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

9:50 /mi

Average Pace

12:28 /mi

Slowest Pace

16:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:35

39% of race

Time at Steady Pace

1:01:40

19% of race

Time at Slower Pace

2:16:23

42% of race

Average Pace: 12:27 /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 mi11:50:3030:349:5030:34
9:50
#23019
10K
6.21 mi12:21:331:01:379:5531:03
10:00
#23422
15K
9.32 mi12:53:161:33:2010:0131:43
10:13
#23640
20K
12.43 mi13:28:312:08:3510:2135:15
11:21
#24109
Half
13.11 mi13:37:252:17:2910:298:54
13:03
#24384
25K
15.53 mi14:12:382:52:4211:0735:13
14:31
#25177
30K
18.64 mi14:58:323:38:3611:4445:54
14:46
#25568
20M
20.00 mi15:18:223:58:2611:5519:50
14:36
#25643
21M
21.00 mi15:34:304:14:3412:0716:08
16:08
#25691
35K
21.75 mi15:44:074:24:1112:099:37
12:51
#25695
23M
23.00 mi16:03:254:43:2912:2019:18
15:25
#25776
24M
24.00 mi16:17:074:57:1112:2313:42
13:42
#25792
40K
24.85 mi16:28:065:08:1012:2410:59
12:51
#25771
25.2M
25.20 mi16:32:545:12:5812:254:48
13:55
#25767
Finish
26.22 mi16:46:345:26:3812:2813:40
13:25
#25792
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23019135971359723898(Top 90%)14038(Top 93%)14038(Top 266%)
10K6.21 mi3.10 mi23422-40313816-21913816-21923668(Top 89%)13936(Top 92%)13936(Top 264%)
15K9.32 mi3.11 mi23640-21813922-10613922-10623898(Top 90%)14038(Top 93%)14038(Top 266%)
20K12.43 mi3.11 mi24109-46914134-21214134-21225053(Top 94%)14521(Top 96%)14521(Top 275%)
Half13.11 mi0.68 mi24384-27514250-11614250-11626365(Top 99%)15057(Top 99%)15057(Top 285%)
25K15.53 mi2.42 mi25177-79314584-33414584-33426483(Top 99%)15113(Top 100%)15113(Top 286%)
30K18.64 mi3.11 mi25568-39114738-15414738-15426349(Top 99%)15044(Top 99%)15044(Top 285%)
20M20.00 mi1.36 mi25643-7514766-2814766-2826145(Top 98%)14922(Top 98%)14922(Top 282%)
21M21.00 mi1.00 mi25691-4814784-1814784-1826253(Top 99%)14984(Top 99%)14984(Top 284%)
35K21.75 mi0.75 mi25695-414783+114783+125451(Top 96%)14542(Top 96%)14542(Top 275%)
23M23.00 mi1.25 mi25776-8114812-2914812-2926389(Top 99%)15042(Top 99%)15042(Top 285%)
24M24.00 mi1.00 mi25792-1614816-414816-425917(Top 97%)14770(Top 97%)14770(Top 279%)
40K24.85 mi0.85 mi25771+2114801+1514801+1524807(Top 93%)14213(Top 94%)14213(Top 269%)
25.2M25.20 mi0.35 mi25767+414798+314798+324946(Top 94%)14257(Top 94%)14257(Top 270%)
Finish26.22 mi1.02 mi25792-2514810-1214810-1226160(Top 98%)14889(Top 98%)14889(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23898

Males

14038

M18-39

14038

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

23668

Males

13936

M18-39

13936

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23898

Males

14038

M18-39

14038

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

25053

Males

14521

M18-39

14521

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26365

Males

15057

M18-39

15057

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26483

Males

15113

M18-39

15113

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26349

Males

15044

M18-39

15044

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

26145

Males

14922

M18-39

14922

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26253

Males

14984

M18-39

14984

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25451

Males

14542

M18-39

14542

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

26389

Males

15042

M18-39

15042

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25917

Males

14770

M18-39

14770

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24807

Males

14213

M18-39

14213

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24946

Males

14257

M18-39

14257

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

26160

Males

14889

M18-39

14889

Passing Analysis

Category:
Athletes Passed
240
Passed By
3013
Net Change
-2773
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23019
5K → 10K83486-403#23019#23422
10K → 15K46264-218#23422#23640
15K → 20K20489-469#23640#24109
20K → Half1276-275#24109#24384
Half → 25K2795-793#24384#25177
25K → 30K6397-391#25177#25568
30K → 20M1186-75#25568#25643
20M → 21M654-48#25643#25691
21M → 35K1317-4#25691#25695
35K → 23M586-81#25695#25776
23M → 24M622-16#25776#25792
24M → 40K287+21#25792#25771
40K → 25.2M84+4#25771#25767
25.2M → Finish530-25#25767#25792
TOTALS2403013-2773
📊

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