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BOSTON MARATHON 2023

Jodi Kasten

Bib: 11081•F

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Female)
#0 / 11423
Top 11%
Division (F18-39)
#0 / 4884
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:14
Rank: #12336
Start → 5K
24:14 | 7:48/mi
10K· 6.21 mi
47:50
Rank: #11788 (+548)
5K → 10K
23:36 | 7:36/mi
15K· 9.32 mi
1:11:03
Rank: #11128 (+660)
10K → 15K
23:13 | 7:28/mi
20K· 12.43 mi
1:34:05
Rank: #10442 (+686)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:39:10
Rank: #10407 (+35)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:57:07
Rank: #9970 (+437)
Half → 25K
17:57 | 7:24/mi
30K· 18.64 mi
2:20:20
Rank: #9382 (+588)
25K → 30K
23:13 | 7:28/mi
20M
2:30:28
Rank: #9133 (+249)
30K → 20M
10:08 | 7:27/mi
21M
2:38:09
Rank: #8897 (+236)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:43:29
Rank: #8771 (+126)
21M → 35K
5:20 | 7:08/mi
23M
2:52:41
Rank: #8533 (+238)
35K → 23M
9:12 | 7:21/mi
24M
2:59:45
Rank: #8334 (+199)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
3:05:53
Rank: #8153 (+181)
24M → 40K
6:08 | 7:10/mi
25.2M
3:08:30
Rank: #8060 (+93)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:15:30
Rank: #7870 (+190)
25.2M → Finish
7:00 | 6:52/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:10
Pace7:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:20
Pace7:21 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0224:147:4824:14
7:48
-
10K
6.21 mi11:14:3847:507:4223:36
7:36
-0:12
15K
9.32 mi11:37:511:11:037:3723:13
7:28
-0:08
20K
12.43 mi12:00:531:34:057:3423:02
7:25
-0:03
Half
13.11 mi12:05:581:39:107:345:05
7:27
+0:02
25K
15.53 mi12:23:551:57:077:3217:57
7:24
-0:03
30K
18.64 mi12:47:082:20:207:3223:13
7:28
+0:04
20M
20.00 mi12:57:162:30:287:3110:08
7:27
-0:01
21M
21.00 mi13:04:572:38:097:327:41
7:41
+0:14
35K
21.75 mi13:10:172:43:297:315:20
7:08
-0:33
23M
23.00 mi13:19:292:52:417:309:12
7:21
+0:13
24M
24.00 mi13:26:332:59:457:297:04
7:04
-0:17
40K
24.85 mi13:32:413:05:537:296:08
7:10
+0:06
25.2M
25.20 mi13:35:183:08:307:292:37
7:35
+0:25
Finish
26.22 mi13:42:183:15:307:287:00
6:52
-0:43

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

6:52 /mi

Average Pace

7:28 /mi

Slowest Pace

7:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:22

70% of race

Time at Steady Pace

58:08

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:51:0224:147:4824:14
7:48
#12336
10K
6.21 mi11:14:3847:507:4223:36
7:36
#11788
15K
9.32 mi11:37:511:11:037:3723:13
7:28
#11128
20K
12.43 mi12:00:531:34:057:3423:02
7:25
#10442
Half
13.11 mi12:05:581:39:107:345:05
7:27
#10407
25K
15.53 mi12:23:551:57:077:3217:57
7:24
#9970
30K
18.64 mi12:47:082:20:207:3223:13
7:28
#9382
20M
20.00 mi12:57:162:30:287:3110:08
7:27
#9133
21M
21.00 mi13:04:572:38:097:327:41
7:41
#8897
35K
21.75 mi13:10:172:43:297:315:20
7:08
#8771
23M
23.00 mi13:19:292:52:417:309:12
7:21
#8533
24M
24.00 mi13:26:332:59:457:297:04
7:04
#8334
40K
24.85 mi13:32:413:05:537:296:08
7:10
#8153
25.2M
25.20 mi13:35:183:08:307:292:37
7:35
#8060
Finish
26.22 mi13:42:183:15:307:287:00
6:52
#7870
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12336305530559954(Top 37%)1814(Top 16%)1814(Top 37%)
10K6.21 mi3.10 mi11788+5482754+3012754+30111297(Top 42%)2487(Top 22%)2487(Top 51%)
15K9.32 mi3.11 mi11128+6602403+3512403+3519954(Top 37%)1814(Top 16%)1814(Top 37%)
20K12.43 mi3.11 mi10442+6862038+3652038+3658629(Top 32%)1343(Top 12%)1343(Top 27%)
Half13.11 mi0.68 mi10407+352031+72031+79844(Top 37%)1799(Top 16%)1799(Top 37%)
25K15.53 mi2.42 mi9970+4371836+1951836+1958067(Top 30%)1216(Top 11%)1216(Top 25%)
30K18.64 mi3.11 mi9382+5881644+1921644+1927055(Top 27%)945(Top 8%)945(Top 19%)
20M20.00 mi1.36 mi9133+2491558+861558+866540(Top 25%)865(Top 8%)865(Top 18%)
21M21.00 mi1.00 mi8897+2361483+751483+755563(Top 21%)691(Top 6%)691(Top 14%)
35K21.75 mi0.75 mi8771+1261442+411442+416138(Top 23%)809(Top 7%)809(Top 17%)
23M23.00 mi1.25 mi8533+2381386+561386+565591(Top 21%)690(Top 6%)690(Top 14%)
24M24.00 mi1.00 mi8334+1991327+591327+595055(Top 19%)593(Top 5%)593(Top 12%)
40K24.85 mi0.85 mi8153+1811284+431284+434784(Top 18%)588(Top 5%)588(Top 12%)
25.2M25.20 mi0.35 mi8060+931254+301254+304415(Top 17%)570(Top 5%)570(Top 12%)
Finish26.22 mi1.02 mi7870+1901207+471207+474491(Top 17%)584(Top 5%)584(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9954

Females

1814

F18-39

1814

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11297

Females

2487

F18-39

2487

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9954

Females

1814

F18-39

1814

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8629

Females

1343

F18-39

1343

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9844

Females

1799

F18-39

1799

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8067

Females

1216

F18-39

1216

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7055

Females

945

F18-39

945

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6540

Females

865

F18-39

865

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5563

Females

691

F18-39

691

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6138

Females

809

F18-39

809

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5591

Females

690

F18-39

690

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5055

Females

593

F18-39

593

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4784

Females

588

F18-39

588

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4415

Females

570

F18-39

570

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4491

Females

584

F18-39

584

Passing Analysis

Category:
Athletes Passed
4651*
Passed By
185
Net Change
+4466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12336
5K → 10K667119+548#12336#11788
10K → 15K67919+660#11788#11128
15K → 20K6915+686#11128#10442
20K → Half4813+35#10442#10407
Half → 25K442*5+437#10407#9970
25K → 30K591*3+588#9970#9382
30K → 20M2534+249#9382#9133
20M → 21M2371+236#9133#8897
21M → 35K1304+126#8897#8771
35K → 23M2413+238#8771#8533
23M → 24M2001+199#8533#8334
24M → 40K1832+181#8334#8153
40K → 25.2M930+93#8153#8060
25.2M → Finish1966+190#8060#7870
TOTALS4651*185+4466

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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