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BOSTON MARATHON 2023

Hui Gu

Bib: 31908•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
11:12/mi
34:49
↑ 97↓ 3451.5%
10K· 6.21 mi
11:20/mi
1:10:03
↑ 79↓ 1380.4%
15K· 9.32 mi
11:22/mi
1:45:22
↑ 67↓ 78
20K· 12.43 mi
11:26/mi
2:20:54
↑ 106↓ 860.1%
Half· 13.11 mi
11:29/mi
2:28:44
↑ 19↓ 370.5%
25K· 15.53 mi
11:31/mi
2:56:40
↑ 66↓ 880.2%
30K· 18.64 mi
11:44/mi
3:33:06
↑ 181↓ 1480.2%
20M
11:53/mi
3:49:15
↑ 64↓ 500.2%
21M
12:58/mi
4:02:13
↑ 106↓ 241.6%
35K· 21.75 mi
11:19/mi
4:10:41
↑ 17↓ 861.7%
23M
11:28/mi
4:25:02
↑ 23↓ 630.6%
24M
10:05/mi
4:35:07
↓ 821.3%
40K· 24.85 mi
9:47/mi
4:43:29
↓ 200.3%
25.2M
10:29/mi
4:47:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:29/mi
4:56:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:28:44
Pace11:21 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:28:02
Pace11:18 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2834:4911:1234:49
11:12
-
10K
6.21 mi12:29:421:10:0311:1635:14
11:20
+0:08
15K
9.32 mi13:05:011:45:2211:1835:19
11:22
+0:02
20K
12.43 mi13:40:332:20:5411:2035:32
11:26
+0:04
Half
13.11 mi13:48:232:28:4411:217:50
11:29
+0:03
25K
15.53 mi14:16:192:56:4011:2227:56
11:31
+0:02
30K
18.64 mi14:52:453:33:0611:2636:26
11:44
+0:13
20M
20.00 mi15:08:543:49:1511:2816:09
11:53
+0:09
21M
21.00 mi15:21:524:02:1311:3212:58
12:58
+1:05
35K
21.75 mi15:30:204:10:4111:328:28
11:19
-1:39
23M
23.00 mi15:44:414:25:0211:3114:21
11:28
+0:09
24M
24.00 mi15:54:464:35:0711:2810:05
10:05
-1:23
40K
24.85 mi16:03:084:43:2911:248:22
9:47
-0:18
25.2M
25.20 mi16:06:454:47:0611:243:37
10:29
+0:42
Finish
26.22 mi16:16:254:56:4611:209:40
9:29
-1:00

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

9:29 /mi

Average Pace

11:20 /mi

Slowest Pace

12:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:44

11% of race

Time at Steady Pace

3:55:55

79% of race

Time at Slower Pace

29:07

10% of race

Average Pace: 11:19 /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 mi11:54:2834:4911:1234:49
11:12
#25939
10K
6.21 mi12:29:421:10:0311:1635:14
11:20
#25891
15K
9.32 mi13:05:011:45:2211:1835:19
11:22
#25806
20K
12.43 mi13:40:332:20:5411:2035:32
11:26
#25624
Half
13.11 mi13:48:232:28:4411:217:50
11:29
#25622
25K
15.53 mi14:16:192:56:4011:2227:56
11:31
#25476
30K
18.64 mi14:52:453:33:0611:2636:26
11:44
#25253
20M
20.00 mi15:08:543:49:1511:2816:09
11:53
#25182
21M
21.00 mi15:21:524:02:1311:3212:58
12:58
#25136
35K
21.75 mi15:30:204:10:4111:328:28
11:19
#25098
23M
23.00 mi15:44:414:25:0211:3114:21
11:28
#25016
24M
24.00 mi15:54:464:35:0711:2810:05
10:05
#24911
40K
24.85 mi16:03:084:43:2911:248:22
9:47
#24778
25.2M
25.20 mi16:06:454:47:0611:243:37
10:29
#24723
Finish
26.22 mi16:16:254:56:4611:209:40
9:29
#24618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi25939110111101125573(Top 96%)10791(Top 94%)10791(Top 894%)
10K6.21 mi3.10 mi25891+4810973+3810973+3825835(Top 97%)10936(Top 96%)10936(Top 906%)
15K9.32 mi3.11 mi25806+8510916+5710916+5725573(Top 96%)10791(Top 94%)10791(Top 894%)
20K12.43 mi3.11 mi25624+18210822+9410822+9425172(Top 95%)10583(Top 93%)10583(Top 877%)
Half13.11 mi0.68 mi25622+2108221082225476(Top 96%)10771(Top 94%)10771(Top 892%)
25K15.53 mi2.42 mi25476+14610749+7310749+7324701(Top 93%)10342(Top 91%)10342(Top 857%)
30K18.64 mi3.11 mi25253+22310631+11810631+11824171(Top 91%)10106(Top 88%)10106(Top 837%)
20M20.00 mi1.36 mi25182+7110600+3110600+3124062(Top 90%)10112(Top 89%)10112(Top 838%)
21M21.00 mi1.00 mi25136+4610580+2010580+2024043(Top 90%)10115(Top 89%)10115(Top 838%)
35K21.75 mi0.75 mi25098+3810564+1610564+1623845(Top 90%)10055(Top 88%)10055(Top 833%)
23M23.00 mi1.25 mi25016+8210532+3210532+3223196(Top 87%)9694(Top 85%)9694(Top 803%)
24M24.00 mi1.00 mi24911+10510479+5310479+5321050(Top 79%)8580(Top 75%)8580(Top 711%)
40K24.85 mi0.85 mi24778+13310405+7410405+7419383(Top 73%)7710(Top 67%)7710(Top 639%)
25.2M25.20 mi0.35 mi24723+5510381+2410381+2419141(Top 72%)7602(Top 67%)7602(Top 630%)
Finish26.22 mi1.02 mi24618+10510324+5710324+5720101(Top 76%)8069(Top 71%)8069(Top 669%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25573

Females

10791

F50-54

10791

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25835

Females

10936

F50-54

10936

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25573

Females

10791

F50-54

10791

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25172

Females

10583

F50-54

10583

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25476

Females

10771

F50-54

10771

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24701

Females

10342

F50-54

10342

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24171

Females

10106

F50-54

10106

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

24062

Females

10112

F50-54

10112

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

24043

Females

10115

F50-54

10115

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23845

Females

10055

F50-54

10055

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23196

Females

9694

F50-54

9694

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

21050

Females

8580

F50-54

8580

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19383

Females

7710

F50-54

7710

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19141

Females

7602

F50-54

7602

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20101

Females

8069

F50-54

8069

Passing Analysis

Category:
Athletes Passed
1523
Passed By
202
Net Change
+1321
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25939
5K → 10K13991+48#25939#25891
10K → 15K12237+85#25891#25806
15K → 20K1919+182#25806#25624
20K → Half1715+2#25624#25622
Half → 25K15913+146#25622#25476
25K → 30K2307+223#25476#25253
30K → 20M754+71#25253#25182
20M → 21M5812+46#25182#25136
21M → 35K413+38#25136#25098
35K → 23M875+82#25098#25016
23M → 24M1061+105#25016#24911
24M → 40K1363+133#24911#24778
40K → 25.2M550+55#24778#24723
25.2M → Finish1072+105#24723#24618
TOTALS1523202+1321
📊

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