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BOSTON MARATHON 2023

Claire Zhang

ON

Bib: 23393 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 45%
Division (F55-59)
#0 / 815
Top 21%
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
8:18/mi
25:48
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:21/mi
51:43
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:26/mi
1:17:54
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:41/mi
1:44:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:33/mi
1:50:43
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:48/mi
2:12:03
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:08/mi
2:40:27
↑ 181↓ 1480.2%
138 ft elev
20M
9:01/mi
2:52:42
↑ 64↓ 500.2%
148 ft elev
21M
9:52/mi
3:02:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:28/mi
3:08:54
↑ 17↓ 861.7%
156 ft elev
23M
9:03/mi
3:20:14
↑ 23↓ 630.6%
116 ft elev
24M
8:49/mi
3:29:03
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:59/mi
3:36:44
↓ 200.3%
20 ft elev
25.2M
9:40/mi
3:40:04
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:05/mi
3:49:19
↑ 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
Time1:50:43
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:58:36
Pace9:03 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1325:488:1825:48
8:18
-
10K
6.21 mi11:43:0851:438:1925:55
8:21
+0:03
15K
9.32 mi12:09:191:17:548:2126:11
8:26
+0:05
20K
12.43 mi12:36:181:44:538:2626:59
8:41
+0:15
Half
13.11 mi12:42:081:50:438:275:50
8:33
-0:08
25K
15.53 mi13:03:282:12:038:3021:20
8:48
+0:15
30K
18.64 mi13:31:522:40:278:3628:24
9:08
+0:20
20M
20.00 mi13:44:072:52:428:3812:15
9:01
-0:07
21M
21.00 mi13:53:593:02:348:429:52
9:52
+0:51
35K
21.75 mi14:00:193:08:548:416:20
8:28
-1:24
23M
23.00 mi14:11:393:20:148:4211:20
9:03
+0:35
24M
24.00 mi14:20:283:29:038:438:49
8:49
-0:14
40K
24.85 mi14:28:093:36:448:437:41
8:59
+0:10
25.2M
25.20 mi14:31:293:40:048:443:20
9:40
+0:41
Finish
26.22 mi14:40:443:49:198:459:15
9:05
-0:35

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

8:18 /mi

Average Pace

8:45 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:43

82% of race

Time at Steady Pace

31:44

14% of race

Time at Slower Pace

9:52

4% of race

Average Pace: 8:45 /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 mi11:17:1325:488:1825:48
8:18
#16198
10K
6.21 mi11:43:0851:438:1925:55
8:21
#16673
15K
9.32 mi12:09:191:17:548:2126:11
8:26
#16910
20K
12.43 mi12:36:181:44:538:2626:59
8:41
#17194
Half
13.11 mi12:42:081:50:438:275:50
8:33
#17234
25K
15.53 mi13:03:282:12:038:3021:20
8:48
#17326
30K
18.64 mi13:31:522:40:278:3628:24
9:08
#17410
20M
20.00 mi13:44:072:52:428:3812:15
9:01
#17336
21M
21.00 mi13:53:593:02:348:429:52
9:52
#17338
35K
21.75 mi14:00:193:08:548:416:20
8:28
#17256
23M
23.00 mi14:11:393:20:148:4211:20
9:03
#17205
24M
24.00 mi14:20:283:29:038:438:49
8:49
#17148
40K
24.85 mi14:28:093:36:448:437:41
8:59
#17112
25.2M
25.20 mi14:31:293:40:048:443:20
9:40
#17103
Finish
26.22 mi14:40:443:49:198:459:15
9:05
#17191
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi161985408540817325(Top 65%)6119(Top 54%)6119(Top 751%)
10K6.21 mi3.10 mi16673-4755689-2815689-28117208(Top 65%)6006(Top 53%)6006(Top 737%)
15K9.32 mi3.11 mi16910-2375860-1715860-17117325(Top 65%)6119(Top 54%)6119(Top 751%)
20K12.43 mi3.11 mi17194-2846045-1856045-18518026(Top 68%)6522(Top 57%)6522(Top 800%)
Half13.11 mi0.68 mi17234-406067-226067-2218024(Top 68%)6488(Top 57%)6488(Top 796%)
25K15.53 mi2.42 mi17326-926136-696136-6917950(Top 67%)6529(Top 57%)6529(Top 801%)
30K18.64 mi3.11 mi17410-846198-626198-6217888(Top 67%)6582(Top 58%)6582(Top 808%)
20M20.00 mi1.36 mi17336+746180+186180+1816637(Top 62%)5939(Top 52%)5939(Top 729%)
21M21.00 mi1.00 mi17338-26198-186198-1817522(Top 66%)6490(Top 57%)6490(Top 796%)
35K21.75 mi0.75 mi17256+826153+456153+4515173(Top 57%)5224(Top 46%)5224(Top 641%)
23M23.00 mi1.25 mi17205+516139+146139+1416337(Top 61%)5937(Top 52%)5937(Top 728%)
24M24.00 mi1.00 mi17148+576127+126127+1216321(Top 61%)5984(Top 52%)5984(Top 734%)
40K24.85 mi0.85 mi17112+366123+46123+416090(Top 60%)5910(Top 52%)5910(Top 725%)
25.2M25.20 mi0.35 mi17103+96123612316015(Top 60%)5879(Top 51%)5879(Top 721%)
Finish26.22 mi1.02 mi17191-886178-556178-5518376(Top 69%)7097(Top 62%)7097(Top 871%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17325

Females

6119

F55-59

6119

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17208

Females

6006

F55-59

6006

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17325

Females

6119

F55-59

6119

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18026

Females

6522

F55-59

6522

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18024

Females

6488

F55-59

6488

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17950

Females

6529

F55-59

6529

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17888

Females

6582

F55-59

6582

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16637

Females

5939

F55-59

5939

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17522

Females

6490

F55-59

6490

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

15173

Females

5224

F55-59

5224

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16337

Females

5937

F55-59

5937

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16321

Females

5984

F55-59

5984

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16090

Females

5910

F55-59

5910

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16015

Females

5879

F55-59

5879

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18376

Females

7097

F55-59

7097

Passing Analysis

Category:
Athletes Passed
1227
Passed By
2220
Net Change
-993
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16198
5K → 10K122597-475#16198#16673
10K → 15K121358-237#16673#16910
15K → 20K90374-284#16910#17194
20K → Half1555-40#17194#17234
Half → 25K99191-92#17234#17326
25K → 30K134218-84#17326#17410
30K → 20M13056+74#17410#17336
20M → 21M8082-2#17336#17338
21M → 35K9513+82#17338#17256
35K → 23M10958+51#17256#17205
23M → 24M9033+57#17205#17148
24M → 40K7539+36#17148#17112
40K → 25.2M3122+9#17112#17103
25.2M → Finish36124-88#17103#17191
TOTALS12272220-993
📊

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