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BOSTON MARATHON 2023

Xinyu Mu

Bib: 22238•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 47%
Division (F50-54)
#0 / 1207
Top 42%
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
8:59/mi
27:54
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
54:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:41/mi
1:21:50
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:48:47
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:54:30
↑ 19↓ 370.5%
25K· 15.53 mi
8:37/mi
2:15:23
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:43:29
↑ 181↓ 1480.2%
20M
9:02/mi
2:55:46
↑ 64↓ 500.2%
21M
9:40/mi
3:05:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
3:11:44
↑ 17↓ 861.7%
23M
8:38/mi
3:22:33
↑ 23↓ 630.6%
24M
8:24/mi
3:30:57
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:38:17
↓ 200.3%
25.2M
9:17/mi
3:41:29
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:50:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:30
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time1:55:42
Pace8:50 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0527:548:5927:54
8:59
-
10K
6.21 mi11:52:0154:508:4926:56
8:40
-0:19
15K
9.32 mi12:19:011:21:508:4727:00
8:41
+0:01
20K
12.43 mi12:45:581:48:478:4526:57
8:40
-0:01
Half
13.11 mi12:51:411:54:308:445:43
8:23
-0:17
25K
15.53 mi13:12:342:15:238:4320:53
8:37
+0:14
30K
18.64 mi13:40:402:43:298:4628:06
9:03
+0:26
20M
20.00 mi13:52:572:55:468:4712:17
9:02
-0:01
21M
21.00 mi14:02:373:05:268:509:40
9:40
+0:38
35K
21.75 mi14:08:553:11:448:496:18
8:25
-1:15
23M
23.00 mi14:19:443:22:338:4810:49
8:38
+0:13
24M
24.00 mi14:28:083:30:578:478:24
8:24
-0:14
40K
24.85 mi14:35:283:38:178:477:20
8:35
+0:11
25.2M
25.20 mi14:38:403:41:298:473:12
9:17
+0:42
Finish
26.22 mi14:47:233:50:128:478:43
8:33
-0:44

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

8:23 /mi

Average Pace

8:47 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:20

94% of race

Time at Steady Pace

12:52

6% of race

Time at Slower Pace

0:00

0% 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 mi11:25:0527:548:5927:54
8:59
#20360
10K
6.21 mi11:52:0154:508:4926:56
8:40
#19806
15K
9.32 mi12:19:011:21:508:4727:00
8:41
#19500
20K
12.43 mi12:45:581:48:478:4526:57
8:40
#19081
Half
13.11 mi12:51:411:54:308:445:43
8:23
#18996
25K
15.53 mi13:12:342:15:238:4320:53
8:37
#18660
30K
18.64 mi13:40:402:43:298:4628:06
9:03
#18404
20M
20.00 mi13:52:572:55:468:4712:17
9:02
#18265
21M
21.00 mi14:02:373:05:268:509:40
9:40
#18154
35K
21.75 mi14:08:553:11:448:496:18
8:25
#18037
23M
23.00 mi14:19:443:22:338:4810:49
8:38
#17824
24M
24.00 mi14:28:083:30:578:478:24
8:24
#17644
40K
24.85 mi14:35:283:38:178:477:20
8:35
#17506
25.2M
25.20 mi14:38:403:41:298:473:12
9:17
#17446
Finish
26.22 mi14:47:233:50:128:478:43
8:33
#17384
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi203608030803018929(Top 71%)7059(Top 62%)7059(Top 585%)
10K6.21 mi3.10 mi19806+5547656+3747656+37419247(Top 72%)7229(Top 63%)7229(Top 599%)
15K9.32 mi3.11 mi19500+3067445+2117445+21118929(Top 71%)7059(Top 62%)7059(Top 585%)
20K12.43 mi3.11 mi19081+4197164+2817164+28117966(Top 67%)6492(Top 57%)6492(Top 538%)
Half13.11 mi0.68 mi18996+857122+427122+4217063(Top 64%)5942(Top 52%)5942(Top 492%)
25K15.53 mi2.42 mi18660+3366930+1926930+19216890(Top 63%)5949(Top 52%)5949(Top 493%)
30K18.64 mi3.11 mi18404+2566809+1216809+12117414(Top 65%)6308(Top 55%)6308(Top 523%)
20M20.00 mi1.36 mi18265+1396738+716738+7116765(Top 63%)6016(Top 53%)6016(Top 498%)
21M21.00 mi1.00 mi18154+1116691+476691+4716732(Top 63%)6035(Top 53%)6035(Top 500%)
35K21.75 mi0.75 mi18037+1176620+716620+7114913(Top 56%)5068(Top 44%)5068(Top 420%)
23M23.00 mi1.25 mi17824+2136516+1046516+10414059(Top 53%)4660(Top 41%)4660(Top 386%)
24M24.00 mi1.00 mi17644+1806422+946422+9413924(Top 52%)4639(Top 41%)4639(Top 384%)
40K24.85 mi0.85 mi17506+1386346+766346+7613867(Top 52%)4680(Top 41%)4680(Top 388%)
25.2M25.20 mi0.35 mi17446+606319+276319+2714186(Top 53%)4870(Top 43%)4870(Top 403%)
Finish26.22 mi1.02 mi17384+626297+226297+2215766(Top 59%)5686(Top 50%)5686(Top 471%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18929

Females

7059

F50-54

7059

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19247

Females

7229

F50-54

7229

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18929

Females

7059

F50-54

7059

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17966

Females

6492

F50-54

6492

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

17063

Females

5942

F50-54

5942

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16890

Females

5949

F50-54

5949

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17414

Females

6308

F50-54

6308

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16765

Females

6016

F50-54

6016

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16732

Females

6035

F50-54

6035

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14913

Females

5068

F50-54

5068

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14059

Females

4660

F50-54

4660

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13924

Females

4639

F50-54

4639

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13867

Females

4680

F50-54

4680

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14186

Females

4870

F50-54

4870

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15766

Females

5686

F50-54

5686

Passing Analysis

Category:
Athletes Passed
3409
Passed By
433
Net Change
+2976
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20360
5K → 10K679125+554#20360#19806
10K → 15K38074+306#19806#19500
15K → 20K44122+419#19500#19081
20K → Half905+85#19081#18996
Half → 25K34711+336#18996#18660
25K → 30K30852+256#18660#18404
30K → 20M16627+139#18404#18265
20M → 21M16251+111#18265#18154
21M → 35K1214+117#18154#18037
35K → 23M2229+213#18037#17824
23M → 24M1844+180#17824#17644
24M → 40K14911+138#17644#17506
40K → 25.2M666+60#17506#17446
25.2M → Finish9432+62#17446#17384
TOTALS3409433+2976
📊

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