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BOSTON MARATHON 2023

Xiaozhong Xing

Bib: 11453•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 44%
Masters (Masters Men)
#0 / 9891
Top 32%
Division (M50-54)
#0 / 2052
Top 27%
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
7:33/mi
23:27
↑ 97↓ 3451.5%
10K· 6.21 mi
7:10/mi
45:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:18/mi
1:08:26
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:31:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:36:34
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:54:38
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:18:10
↑ 181↓ 1480.2%
20M
7:31/mi
2:28:23
↑ 64↓ 500.2%
21M
7:50/mi
2:36:13
↑ 106↓ 241.6%
35K· 21.75 mi
7:16/mi
2:41:39
↑ 17↓ 861.7%
23M
7:34/mi
2:51:08
↑ 23↓ 630.6%
24M
7:30/mi
2:58:38
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:05:16
↓ 200.3%
25.2M
8:16/mi
3:08:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:42/mi
3:15:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:34
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:39:24
Pace7:35 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1323:277:3323:27
7:33
-
10K
6.21 mi11:12:3045:447:2222:17
7:10
-0:23
15K
9.32 mi11:35:121:08:267:2122:42
7:18
+0:08
20K
12.43 mi11:58:221:31:367:2223:10
7:27
+0:09
Half
13.11 mi12:03:201:36:347:224:58
7:17
-0:10
25K
15.53 mi12:21:241:54:387:2318:04
7:27
+0:10
30K
18.64 mi12:44:562:18:107:2523:32
7:34
+0:07
20M
20.00 mi12:55:092:28:237:2510:13
7:31
-0:03
21M
21.00 mi13:02:592:36:137:267:50
7:50
+0:19
35K
21.75 mi13:08:252:41:397:265:26
7:16
-0:34
23M
23.00 mi13:17:542:51:087:269:29
7:34
+0:18
24M
24.00 mi13:25:242:58:387:277:30
7:30
-0:04
40K
24.85 mi13:32:023:05:167:276:38
7:45
+0:15
25.2M
25.20 mi13:34:533:08:077:282:51
8:16
+0:31
Finish
26.22 mi13:42:443:15:587:297:51
7:42
-0:34

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

7:10 /mi

Average Pace

7:29 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:07

99% of race

Time at Steady Pace

2:51

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:50:1323:277:3323:27
7:33
#10041
10K
6.21 mi11:12:3045:447:2222:17
7:10
#8882
15K
9.32 mi11:35:121:08:267:2122:42
7:18
#8777
20K
12.43 mi11:58:221:31:367:2223:10
7:27
#8770
Half
13.11 mi12:03:201:36:347:224:58
7:17
#8753
25K
15.53 mi12:21:241:54:387:2318:04
7:27
#8674
30K
18.64 mi12:44:562:18:107:2523:32
7:34
#8446
20M
20.00 mi12:55:092:28:237:2510:13
7:31
#8313
21M
21.00 mi13:02:592:36:137:267:50
7:50
#8183
35K
21.75 mi13:08:252:41:397:265:26
7:16
#8118
23M
23.00 mi13:17:542:51:087:269:29
7:34
#8003
24M
24.00 mi13:25:242:58:387:277:30
7:30
#7969
40K
24.85 mi13:32:023:05:167:276:38
7:45
#7947
25.2M
25.20 mi13:34:533:08:077:282:51
8:16
#7938
Finish
26.22 mi13:42:443:15:587:297:51
7:42
#8003
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10041814581458586(Top 32%)7295(Top 48%)7295(Top 356%)
10K6.21 mi3.10 mi8882+11597505+6407505+6407905(Top 30%)6873(Top 45%)6873(Top 335%)
15K9.32 mi3.11 mi8777+1057423+827423+828586(Top 32%)7295(Top 48%)7295(Top 356%)
20K12.43 mi3.11 mi8770+77421+27421+28954(Top 34%)7472(Top 49%)7472(Top 364%)
Half13.11 mi0.68 mi8753+177404+177404+178399(Top 32%)7138(Top 47%)7138(Top 348%)
25K15.53 mi2.42 mi8674+797339+657339+658400(Top 32%)7061(Top 47%)7061(Top 344%)
30K18.64 mi3.11 mi8446+2287154+1857154+1857753(Top 29%)6545(Top 43%)6545(Top 319%)
20M20.00 mi1.36 mi8313+1337044+1107044+1106909(Top 26%)5918(Top 39%)5918(Top 288%)
21M21.00 mi1.00 mi8183+1306950+946950+946346(Top 24%)5450(Top 36%)5450(Top 266%)
35K21.75 mi0.75 mi8118+656899+516899+516905(Top 26%)5839(Top 38%)5839(Top 285%)
23M23.00 mi1.25 mi8003+1156804+956804+956905(Top 26%)5770(Top 38%)5770(Top 281%)
24M24.00 mi1.00 mi7969+346765+396765+397685(Top 29%)6123(Top 40%)6123(Top 298%)
40K24.85 mi0.85 mi7947+226737+286737+288356(Top 31%)6462(Top 43%)6462(Top 315%)
25.2M25.20 mi0.35 mi7938+96719+186719+188010(Top 30%)6170(Top 41%)6170(Top 301%)
Finish26.22 mi1.02 mi8003-656741-226741-229975(Top 37%)7269(Top 48%)7269(Top 354%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8586

Males

7295

M50-54

7295

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

7905

Males

6873

M50-54

6873

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8586

Males

7295

M50-54

7295

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

8954

Males

7472

M50-54

7472

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8399

Males

7138

M50-54

7138

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8400

Males

7061

M50-54

7061

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7753

Males

6545

M50-54

6545

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6909

Males

5918

M50-54

5918

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6346

Males

5450

M50-54

5450

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

6905

Males

5839

M50-54

5839

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6905

Males

5770

M50-54

5770

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7685

Males

6123

M50-54

6123

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8356

Males

6462

M50-54

6462

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8010

Males

6170

M50-54

6170

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9975

Males

7269

M50-54

7269

Passing Analysis

Category:
Athletes Passed
2718*
Passed By
680
Net Change
+2038
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10041
5K → 10K1188*29+1159#10041#8882
10K → 15K19691+105#8882#8777
15K → 20K138131+7#8777#8770
20K → Half3417+17#8770#8753
Half → 25K13960+79#8753#8674
25K → 30K28557+228#8674#8446
30K → 20M14815+133#8446#8313
20M → 21M15020+130#8313#8183
21M → 35K7914+65#8183#8118
35K → 23M14328+115#8118#8003
23M → 24M7743+34#8003#7969
24M → 40K6442+22#7969#7947
40K → 25.2M3223+9#7947#7938
25.2M → Finish45110-65#7938#8003
TOTALS2718*680+2038

* 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