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BOSTON MARATHON 2023

Zih-Han Kuo

Bib: 8612•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 26%
Masters (Masters Women)
#0 / 6539
Top 13%
Division (F40-44)
#0 / 1878
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:47
Rank: #3602
Start → 5K
20:47 | 6:41/mi
10K· 6.21 mi
43:03
Rank: #6043 (-2441)
5K → 10K
22:16 | 7:10/mi
15K· 9.32 mi
1:06:08
Rank: #7082 (-1039)
10K → 15K
23:05 | 7:26/mi
20K· 12.43 mi
1:30:18
Rank: #8013 (-931)
15K → 20K
24:10 | 7:47/mi
Half· 13.11 mi
1:35:31
Rank: #8165 (-152)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:54:55
Rank: #8825 (-660)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:20:57
Rank: #9676 (-851)
25K → 30K
26:02 | 8:23/mi
20M
2:32:20
Rank: #9871 (-195)
30K → 20M
11:23 | 8:23/mi
21M
2:41:41
Rank: #10213 (-342)
20M → 21M
9:21 | 9:21/mi
35K· 21.75 mi
2:47:51
Rank: #10345 (-132)
21M → 35K
6:10 | 8:15/mi
23M
2:59:02
Rank: #10666 (-321)
35K → 23M
11:11 | 8:56/mi
24M
3:07:49
Rank: #10938 (-272)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:15:45
Rank: #11261 (-323)
24M → 40K
7:56 | 9:17/mi
25.2M
3:19:07
Rank: #11378 (-117)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:28:33
Rank: #11802 (-424)
25.2M → Finish
9:26 | 9:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:31
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:53:02
Pace8:37 /mi
📊Positive Split: 18.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:5020:476:4120:47
6:41
-
10K
6.21 mi11:08:0643:036:5622:16
7:10
+0:29
15K
9.32 mi11:31:111:06:087:0623:05
7:26
+0:16
20K
12.43 mi11:55:211:30:187:1624:10
7:47
+0:21
Half
13.11 mi12:00:341:35:317:175:13
7:39
-0:08
25K
15.53 mi12:19:581:54:557:2419:24
8:00
+0:21
30K
18.64 mi12:46:002:20:577:3426:02
8:23
+0:23
20M
20.00 mi12:57:232:32:207:3711:23
8:23
0:00
21M
21.00 mi13:06:442:41:417:429:21
9:21
+0:58
35K
21.75 mi13:12:542:47:517:436:10
8:15
-1:06
23M
23.00 mi13:24:052:59:027:4711:11
8:56
+0:41
24M
24.00 mi13:32:523:07:497:508:47
8:47
-0:09
40K
24.85 mi13:40:483:15:457:537:56
9:17
+0:30
25.2M
25.20 mi13:44:103:19:077:543:22
9:46
+0:29
Finish
26.22 mi13:53:363:28:337:589:26
9:15
-0:31

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

6:41 /mi

Average Pace

7:58 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:31

46% of race

Time at Steady Pace

1:11:46

34% of race

Time at Slower Pace

41:16

20% of race

Average Pace: 7:57 /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 mi10:45:5020:476:4120:47
6:41
#3602
10K
6.21 mi11:08:0643:036:5622:16
7:10
#6043
15K
9.32 mi11:31:111:06:087:0623:05
7:26
#7082
20K
12.43 mi11:55:211:30:187:1624:10
7:47
#8013
Half
13.11 mi12:00:341:35:317:175:13
7:39
#8165
25K
15.53 mi12:19:581:54:557:2419:24
8:00
#8825
30K
18.64 mi12:46:002:20:577:3426:02
8:23
#9676
20M
20.00 mi12:57:232:32:207:3711:23
8:23
#9871
21M
21.00 mi13:06:442:41:417:429:21
9:21
#10213
35K
21.75 mi13:12:542:47:517:436:10
8:15
#10345
23M
23.00 mi13:24:052:59:027:4711:11
8:56
#10666
24M
24.00 mi13:32:523:07:497:508:47
8:47
#10938
40K
24.85 mi13:40:483:15:457:537:56
9:17
#11261
25.2M
25.20 mi13:44:103:19:077:543:22
9:46
#11378
Finish
26.22 mi13:53:363:28:337:589:26
9:15
#11802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi36022052059623(Top 36%)1679(Top 15%)1679(Top 89%)
10K6.21 mi3.10 mi6043-2441517-312517-3127895(Top 30%)1020(Top 9%)1020(Top 54%)
15K9.32 mi3.11 mi7082-1039759-242759-2429623(Top 36%)1679(Top 15%)1679(Top 89%)
20K12.43 mi3.11 mi8013-9311061-3021061-30211572(Top 43%)2726(Top 24%)2726(Top 145%)
Half13.11 mi0.68 mi8165-1521110-491110-4911486(Top 43%)2627(Top 23%)2627(Top 140%)
25K15.53 mi2.42 mi8825-6601385-2751385-27512755(Top 48%)3489(Top 31%)3489(Top 186%)
30K18.64 mi3.11 mi9676-8511753-3681753-36813558(Top 51%)4061(Top 36%)4061(Top 216%)
20M20.00 mi1.36 mi9871-1951864-1111864-11112873(Top 48%)3783(Top 33%)3783(Top 201%)
21M21.00 mi1.00 mi10213-3422051-1872051-18715255(Top 57%)5192(Top 45%)5192(Top 276%)
35K21.75 mi0.75 mi10345-1322137-862137-8613751(Top 52%)4414(Top 39%)4414(Top 235%)
23M23.00 mi1.25 mi10666-3212342-2052342-20515695(Top 59%)5564(Top 49%)5564(Top 296%)
24M24.00 mi1.00 mi10938-2722494-1522494-15216105(Top 60%)5855(Top 51%)5855(Top 312%)
40K24.85 mi0.85 mi11261-3232689-1952689-19517424(Top 65%)6633(Top 58%)6633(Top 353%)
25.2M25.20 mi0.35 mi11378-1172760-712760-7116369(Top 61%)6063(Top 53%)6063(Top 323%)
Finish26.22 mi1.02 mi11802-4243011-2513011-25119180(Top 72%)7534(Top 66%)7534(Top 401%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9623

Females

1679

F40-44

1679

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7895

Females

1020

F40-44

1020

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9623

Females

1679

F40-44

1679

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11572

Females

2726

F40-44

2726

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11486

Females

2627

F40-44

2627

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12755

Females

3489

F40-44

3489

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13558

Females

4061

F40-44

4061

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

12873

Females

3783

F40-44

3783

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15255

Females

5192

F40-44

5192

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13751

Females

4414

F40-44

4414

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

15695

Females

5564

F40-44

5564

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16105

Females

5855

F40-44

5855

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17424

Females

6633

F40-44

6633

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16369

Females

6063

F40-44

6063

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19180

Females

7534

F40-44

7534

Passing Analysis

Category:
Athletes Passed
231
Passed By
8429
Net Change
-8200
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3602
5K → 10K12442-2441#3602#6043
10K → 15K61045-1039#6043#7082
15K → 20K7938-931#7082#8013
20K → Half1153-152#8013#8165
Half → 25K12672-660#8165#8825
25K → 30K31882-851#8825#9676
30K → 20M45240-195#9676#9871
20M → 21M23363-342#9871#10213
21M → 35K20152-132#10213#10345
35K → 23M26347-321#10345#10666
23M → 24M20292-272#10666#10938
24M → 40K9332-323#10938#11261
40K → 25.2M13130-117#11261#11378
25.2M → Finish17441-424#11378#11802
TOTALS2318429-8200
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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