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BOSTON MARATHON 2023

Kahori Koda

Bib: 22104•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

Start
0:00:00
Race begins
5K· 3.11 mi
26:43
Rank: #18237
Start → 5K
26:43 | 8:36/mi
10K· 6.21 mi
51:53
Rank: #16863 (+1374)
5K → 10K
25:10 | 8:06/mi
15K· 9.32 mi
1:16:47
Rank: #16108 (+755)
10K → 15K
24:54 | 8:01/mi
20K· 12.43 mi
1:43:10
Rank: #16298 (-190)
15K → 20K
26:23 | 8:30/mi
Half· 13.11 mi
1:48:51
Rank: #16307 (-9)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:09:38
Rank: #16372 (-65)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:37:53
Rank: #16592 (-220)
25K → 30K
28:15 | 9:06/mi
20M
2:50:46
Rank: #16767 (-175)
30K → 20M
12:53 | 9:29/mi
21M
3:00:36
Rank: #16798 (-31)
20M → 21M
9:50 | 9:50/mi
35K· 21.75 mi
3:07:19
Rank: #16838 (-40)
21M → 35K
6:43 | 8:59/mi
23M
3:19:27
Rank: #16998 (-160)
35K → 23M
12:08 | 9:41/mi
24M
3:28:44
Rank: #17074 (-76)
23M → 24M
9:17 | 9:17/mi
40K· 24.85 mi
3:36:48
Rank: #17132 (-58)
24M → 40K
8:04 | 9:26/mi
25.2M
3:40:13
Rank: #17140 (-8)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:49:12
Rank: #17159 (-19)
25.2M → Finish
8:59 | 8:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:51
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time2:00:21
Pace9:11 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5126:438:3626:43
8:36
-
10K
6.21 mi11:46:0151:538:2125:10
8:06
-0:30
15K
9.32 mi12:10:551:16:478:1424:54
8:01
-0:05
20K
12.43 mi12:37:181:43:108:1826:23
8:30
+0:29
Half
13.11 mi12:42:591:48:518:185:41
8:20
-0:10
25K
15.53 mi13:03:462:09:388:2120:47
8:34
+0:14
30K
18.64 mi13:32:012:37:538:2828:15
9:06
+0:32
20M
20.00 mi13:44:542:50:468:3212:53
9:29
+0:23
21M
21.00 mi13:54:443:00:368:369:50
9:50
+0:21
35K
21.75 mi14:01:273:07:198:376:43
8:59
-0:51
23M
23.00 mi14:13:353:19:278:4012:08
9:41
+0:42
24M
24.00 mi14:22:523:28:448:429:17
9:17
-0:24
40K
24.85 mi14:30:563:36:488:438:04
9:26
+0:09
25.2M
25.20 mi14:34:213:40:138:443:25
9:54
+0:28
Finish
26.22 mi14:43:203:49:128:458:59
8:49
-1:05

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

8:01 /mi

Average Pace

8:45 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:38

57% of race

Time at Steady Pace

43:57

19% of race

Time at Slower Pace

55:37

24% of race

Average Pace: 8:44 /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 mi11:20:5126:438:3626:43
8:36
#18237
10K
6.21 mi11:46:0151:538:2125:10
8:06
#16863
15K
9.32 mi12:10:551:16:478:1424:54
8:01
#16108
20K
12.43 mi12:37:181:43:108:1826:23
8:30
#16298
Half
13.11 mi12:42:591:48:518:185:41
8:20
#16307
25K
15.53 mi13:03:462:09:388:2120:47
8:34
#16372
30K
18.64 mi13:32:012:37:538:2828:15
9:06
#16592
20M
20.00 mi13:44:542:50:468:3212:53
9:29
#16767
21M
21.00 mi13:54:443:00:368:369:50
9:50
#16798
35K
21.75 mi14:01:273:07:198:376:43
8:59
#16838
23M
23.00 mi14:13:353:19:278:4012:08
9:41
#16998
24M
24.00 mi14:22:523:28:448:429:17
9:17
#17074
40K
24.85 mi14:30:563:36:488:438:04
9:26
#17132
25.2M
25.20 mi14:34:213:40:138:443:25
9:54
#17140
Finish
26.22 mi14:43:203:49:128:458:59
8:49
#17159
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi182376701670114520(Top 55%)4401(Top 39%)4401(Top 540%)
10K6.21 mi3.10 mi16863+13745820+8815820+88115530(Top 58%)4974(Top 44%)4974(Top 610%)
15K9.32 mi3.11 mi16108+7555354+4665354+46614520(Top 55%)4401(Top 39%)4401(Top 540%)
20K12.43 mi3.11 mi16298-1905486-1325486-13216811(Top 63%)5829(Top 51%)5829(Top 715%)
Half13.11 mi0.68 mi16307-95496-105496-1016733(Top 63%)5744(Top 50%)5744(Top 705%)
25K15.53 mi2.42 mi16372-655557-615557-6116654(Top 63%)5810(Top 51%)5810(Top 713%)
30K18.64 mi3.11 mi16592-2205740-1835740-18317657(Top 66%)6444(Top 56%)6444(Top 791%)
20M20.00 mi1.36 mi16767-1755846-1065846-10618793(Top 71%)7185(Top 63%)7185(Top 882%)
21M21.00 mi1.00 mi16798-315866-205866-2017388(Top 65%)6421(Top 56%)6421(Top 788%)
35K21.75 mi0.75 mi16838-405898-325898-3217829(Top 67%)6731(Top 59%)6731(Top 826%)
23M23.00 mi1.25 mi16998-1606023-1256023-12519050(Top 72%)7433(Top 65%)7433(Top 912%)
24M24.00 mi1.00 mi17074-766087-646087-6418399(Top 69%)7106(Top 62%)7106(Top 872%)
40K24.85 mi0.85 mi17132-586134-476134-4718108(Top 68%)6994(Top 61%)6994(Top 858%)
25.2M25.20 mi0.35 mi17140-86147-136147-1317061(Top 64%)6453(Top 56%)6453(Top 792%)
Finish26.22 mi1.02 mi17159-196159-126159-1217134(Top 64%)6449(Top 56%)6449(Top 791%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14520

Females

4401

F55-59

4401

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

15530

Females

4974

F55-59

4974

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14520

Females

4401

F55-59

4401

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

16811

Females

5829

F55-59

5829

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16733

Females

5744

F55-59

5744

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16654

Females

5810

F55-59

5810

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17657

Females

6444

F55-59

6444

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18793

Females

7185

F55-59

7185

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17388

Females

6421

F55-59

6421

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17829

Females

6731

F55-59

6731

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19050

Females

7433

F55-59

7433

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18399

Females

7106

F55-59

7106

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18108

Females

6994

F55-59

6994

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17061

Females

6453

F55-59

6453

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

17134

Females

6449

F55-59

6449

Passing Analysis

Category:
Athletes Passed
2925
Passed By
1847
Net Change
+1078
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18237
5K → 10K142046+1374#18237#16863
10K → 15K78631+755#16863#16108
15K → 20K114304-190#16108#16298
20K → Half3443-9#16298#16307
Half → 25K116181-65#16307#16372
25K → 30K119339-220#16372#16592
30K → 20M37212-175#16592#16767
20M → 21M6899-31#16767#16798
21M → 35K3474-40#16798#16838
35K → 23M46206-160#16838#16998
23M → 24M38114-76#16998#17074
24M → 40K3593-58#17074#17132
40K → 25.2M2432-8#17132#17140
25.2M → Finish5473-19#17140#17159
TOTALS29251847+1078
📊

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