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BOSTON MARATHON 2023

Amy Koch-Nett

Bib: 22378•F

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 36%
Division (F50-54)
#0 / 1207
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:40
Rank: #15903
Start → 5K
25:40 | 8:16/mi
10K· 6.21 mi
51:28
Rank: #16387 (-484)
5K → 10K
25:48 | 8:18/mi
15K· 9.32 mi
1:17:11
Rank: #16377 (+10)
10K → 15K
25:43 | 8:17/mi
20K· 12.43 mi
1:43:16
Rank: #16359 (+18)
15K → 20K
26:05 | 8:24/mi
Half· 13.11 mi
1:48:55
Rank: #16356 (+3)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:08:57
Rank: #16041 (+315)
Half → 25K
20:02 | 8:16/mi
30K· 18.64 mi
2:35:28
Rank: #15752 (+289)
25K → 30K
26:31 | 8:32/mi
20M
2:47:17
Rank: #15641 (+111)
30K → 20M
11:49 | 8:42/mi
21M
2:56:34
Rank: #15581 (+60)
20M → 21M
9:17 | 9:17/mi
35K· 21.75 mi
3:03:02
Rank: #15601 (-20)
21M → 35K
6:28 | 8:39/mi
23M
3:14:18
Rank: #15613 (-12)
35K → 23M
11:16 | 9:00/mi
24M
3:23:14
Rank: #15663 (-50)
23M → 24M
8:56 | 8:56/mi
40K· 24.85 mi
3:30:56
Rank: #15685 (-22)
24M → 40K
7:42 | 9:00/mi
25.2M
3:34:21
Rank: #15717 (-32)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:43:24
Rank: #15779 (-62)
25.2M → Finish
9:03 | 8:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:55
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:54:29
Pace8:44 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5625:408:1625:40
8:16
-
10K
6.21 mi11:48:4451:288:1725:48
8:18
+0:02
15K
9.32 mi12:14:271:17:118:1725:43
8:17
-0:01
20K
12.43 mi12:40:321:43:168:1926:05
8:24
+0:07
Half
13.11 mi12:46:111:48:558:185:39
8:17
-0:07
25K
15.53 mi13:06:132:08:578:1820:02
8:16
-0:01
30K
18.64 mi13:32:442:35:288:2026:31
8:32
+0:16
20M
20.00 mi13:44:332:47:178:2211:49
8:42
+0:10
21M
21.00 mi13:53:502:56:348:249:17
9:17
+0:35
35K
21.75 mi14:00:183:03:028:256:28
8:39
-0:38
23M
23.00 mi14:11:343:14:188:2711:16
9:00
+0:21
24M
24.00 mi14:20:303:23:148:288:56
8:56
-0:04
40K
24.85 mi14:28:123:30:568:297:42
9:00
+0:04
25.2M
25.20 mi14:31:373:34:218:303:25
9:54
+0:54
Finish
26.22 mi14:40:403:43:248:329:03
8:53
-1:01

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

8:16 /mi

Average Pace

8:32 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:30:42

94% of race

Time at Steady Pace

9:17

4% of race

Time at Slower Pace

3:25

2% of race

Average Pace: 8:31 /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 mi11:22:5625:408:1625:40
8:16
#15903
10K
6.21 mi11:48:4451:288:1725:48
8:18
#16387
15K
9.32 mi12:14:271:17:118:1725:43
8:17
#16377
20K
12.43 mi12:40:321:43:168:1926:05
8:24
#16359
Half
13.11 mi12:46:111:48:558:185:39
8:17
#16356
25K
15.53 mi13:06:132:08:578:1820:02
8:16
#16041
30K
18.64 mi13:32:442:35:288:2026:31
8:32
#15752
20M
20.00 mi13:44:332:47:178:2211:49
8:42
#15641
21M
21.00 mi13:53:502:56:348:249:17
9:17
#15581
35K
21.75 mi14:00:183:03:028:256:28
8:39
#15601
23M
23.00 mi14:11:343:14:188:2711:16
9:00
#15613
24M
24.00 mi14:20:303:23:148:288:56
8:56
#15663
40K
24.85 mi14:28:123:30:568:297:42
9:00
#15685
25.2M
25.20 mi14:31:373:34:218:303:25
9:54
#15717
Finish
26.22 mi14:40:403:43:248:329:03
8:53
#15779
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi159035221522116407(Top 62%)5539(Top 48%)5539(Top 459%)
10K6.21 mi3.10 mi16387-4845518-2975518-29716957(Top 64%)5847(Top 51%)5847(Top 484%)
15K9.32 mi3.11 mi16377+105513+55513+516407(Top 62%)5539(Top 48%)5539(Top 459%)
20K12.43 mi3.11 mi16359+185528-155528-1516224(Top 61%)5484(Top 48%)5484(Top 454%)
Half13.11 mi0.68 mi16356+35527+15527+116400(Top 62%)5532(Top 48%)5532(Top 458%)
25K15.53 mi2.42 mi16041+3155360+1675360+16714711(Top 55%)4657(Top 41%)4657(Top 386%)
30K18.64 mi3.11 mi15752+2895227+1335227+13314540(Top 55%)4652(Top 41%)4652(Top 385%)
20M20.00 mi1.36 mi15641+1115177+505177+5014859(Top 56%)4920(Top 43%)4920(Top 408%)
21M21.00 mi1.00 mi15581+605166+115166+1114923(Top 56%)5012(Top 44%)5012(Top 415%)
35K21.75 mi0.75 mi15601-205199-335199-3316121(Top 61%)5760(Top 50%)5760(Top 477%)
23M23.00 mi1.25 mi15613-125234-355234-3516078(Top 60%)5785(Top 51%)5785(Top 479%)
24M24.00 mi1.00 mi15663-505280-465280-4616929(Top 64%)6310(Top 55%)6310(Top 523%)
40K24.85 mi0.85 mi15685-225296-165296-1616196(Top 61%)5967(Top 52%)5967(Top 494%)
25.2M25.20 mi0.35 mi15717-325313-175313-1717039(Top 64%)6431(Top 56%)6431(Top 533%)
Finish26.22 mi1.02 mi15779-625363-505363-5017424(Top 65%)6598(Top 58%)6598(Top 547%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16407

Females

5539

F50-54

5539

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

16957

Females

5847

F50-54

5847

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16407

Females

5539

F50-54

5539

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16224

Females

5484

F50-54

5484

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16400

Females

5532

F50-54

5532

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14711

Females

4657

F50-54

4657

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14540

Females

4652

F50-54

4652

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14859

Females

4920

F50-54

4920

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

14923

Females

5012

F50-54

5012

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16121

Females

5760

F50-54

5760

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16078

Females

5785

F50-54

5785

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

16929

Females

6310

F50-54

6310

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16196

Females

5967

F50-54

5967

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17039

Females

6431

F50-54

6431

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

17424

Females

6598

F50-54

6598

Passing Analysis

Category:
Athletes Passed
1755
Passed By
1631
Net Change
+124
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15903
5K → 10K126610-484#15903#16387
10K → 15K199189+10#16387#16377
15K → 20K180162+18#16377#16359
20K → Half4037+3#16359#16356
Half → 25K33318+315#16356#16041
25K → 30K34455+289#16041#15752
30K → 20M14029+111#15752#15641
20M → 21M11252+60#15641#15581
21M → 35K4060-20#15581#15601
35K → 23M8092-12#15601#15613
23M → 24M53103-50#15613#15663
24M → 40K5173-22#15663#15685
40K → 25.2M1850-32#15685#15717
25.2M → Finish39101-62#15717#15779
TOTALS17551631+124
📊

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