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BOSTON MARATHON 2023

Katelyn Griffin

Bib: 18167•F

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:45
Rank: #16071
Start → 5K
25:45 | 8:17/mi
10K· 6.21 mi
50:30
Rank: #15299 (+772)
5K → 10K
24:45 | 7:58/mi
15K· 9.32 mi
1:15:27
Rank: #15096 (+203)
10K → 15K
24:57 | 8:02/mi
20K· 12.43 mi
1:40:43
Rank: #14894 (+202)
15K → 20K
25:16 | 8:08/mi
Half· 13.11 mi
1:47:49
Rank: #15753 (-859)
20K → Half
7:06 | 10:24/mi
25K· 15.53 mi
2:07:46
Rank: #15517 (+236)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:34:34
Rank: #15415 (+102)
25K → 30K
26:48 | 8:38/mi
20M
2:46:30
Rank: #15412 (+3)
30K → 20M
11:56 | 8:47/mi
21M
2:55:55
Rank: #15372 (+40)
20M → 21M
9:25 | 9:25/mi
35K· 21.75 mi
3:02:24
Rank: #15402 (-30)
21M → 35K
6:29 | 8:40/mi
23M
3:13:41
Rank: #15438 (-36)
35K → 23M
11:17 | 9:01/mi
24M
3:23:54
Rank: #15853 (-415)
23M → 24M
10:13 | 10:13/mi
40K· 24.85 mi
3:31:20
Rank: #15792 (+61)
24M → 40K
7:26 | 8:42/mi
25.2M
3:34:31
Rank: #15758 (+34)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:42:30
Rank: #15564 (+194)
25.2M → Finish
7:59 | 7:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:49
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:54:41
Pace8:45 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0825:458:1725:45
8:17
-
10K
6.21 mi11:41:5350:308:0824:45
7:58
-0:19
15K
9.32 mi12:06:501:15:278:0624:57
8:02
+0:04
20K
12.43 mi12:32:061:40:438:0625:16
8:08
+0:06
Half
13.11 mi12:39:121:47:498:137:06
10:24
+2:16
25K
15.53 mi12:59:092:07:468:1319:57
8:14
-2:10
30K
18.64 mi13:25:572:34:348:1826:48
8:38
+0:24
20M
20.00 mi13:37:532:46:308:1911:56
8:47
+0:09
21M
21.00 mi13:47:182:55:558:239:25
9:25
+0:38
35K
21.75 mi13:53:473:02:248:236:29
8:40
-0:45
23M
23.00 mi14:05:043:13:418:2511:17
9:01
+0:21
24M
24.00 mi14:15:173:23:548:3010:13
10:13
+1:12
40K
24.85 mi14:22:433:31:208:307:26
8:42
-1:31
25.2M
25.20 mi14:25:543:34:318:313:11
9:14
+0:32
Finish
26.22 mi14:33:533:42:308:307:59
7:50
-1:24

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

7:50 /mi

Average Pace

8:30 /mi

Slowest Pace

10:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:39

58% of race

Time at Steady Pace

1:03:56

29% of race

Time at Slower Pace

29:55

13% of race

Average Pace: 8:29 /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 mi11:17:0825:458:1725:45
8:17
#16071
10K
6.21 mi11:41:5350:308:0824:45
7:58
#15299
15K
9.32 mi12:06:501:15:278:0624:57
8:02
#15096
20K
12.43 mi12:32:061:40:438:0625:16
8:08
#14894
Half
13.11 mi12:39:121:47:498:137:06
10:24
#15753
25K
15.53 mi12:59:092:07:468:1319:57
8:14
#15517
30K
18.64 mi13:25:572:34:348:1826:48
8:38
#15415
20M
20.00 mi13:37:532:46:308:1911:56
8:47
#15412
21M
21.00 mi13:47:182:55:558:239:25
9:25
#15372
35K
21.75 mi13:53:473:02:248:236:29
8:40
#15402
23M
23.00 mi14:05:043:13:418:2511:17
9:01
#15438
24M
24.00 mi14:15:173:23:548:3010:13
10:13
#15853
40K
24.85 mi14:22:433:31:208:307:26
8:42
#15792
25.2M
25.20 mi14:25:543:34:318:313:11
9:14
#15758
Finish
26.22 mi14:33:533:42:308:307:59
7:50
#15564
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160715331533114660(Top 55%)4484(Top 39%)4484(Top 92%)
10K6.21 mi3.10 mi15299+7724836+4954836+49514561(Top 55%)4397(Top 38%)4397(Top 90%)
15K9.32 mi3.11 mi15096+2034725+1114725+11114660(Top 55%)4484(Top 39%)4484(Top 92%)
20K12.43 mi3.11 mi14894+2024616+1094616+10914478(Top 54%)4391(Top 38%)4391(Top 90%)
Half13.11 mi0.68 mi15753-8595154-5385154-53824032(Top 90%)9923(Top 87%)9923(Top 203%)
25K15.53 mi2.42 mi15517+2365037+1175037+11714469(Top 54%)4496(Top 39%)4496(Top 92%)
30K18.64 mi3.11 mi15415+1025026+115026+1115088(Top 57%)4991(Top 44%)4991(Top 102%)
20M20.00 mi1.36 mi15412+35039-135039-1315332(Top 58%)5181(Top 45%)5181(Top 106%)
21M21.00 mi1.00 mi15372+405042-35042-315573(Top 58%)5387(Top 47%)5387(Top 110%)
35K21.75 mi0.75 mi15402-305072-305072-3016248(Top 61%)5833(Top 51%)5833(Top 119%)
23M23.00 mi1.25 mi15438-365123-515123-5116134(Top 61%)5814(Top 51%)5814(Top 119%)
24M24.00 mi1.00 mi15853-4155388-2655388-26521370(Top 80%)8764(Top 77%)8764(Top 179%)
40K24.85 mi0.85 mi15792+615359+295359+2914499(Top 54%)5029(Top 44%)5029(Top 103%)
25.2M25.20 mi0.35 mi15758+345338+215338+2113890(Top 52%)4701(Top 41%)4701(Top 96%)
Finish26.22 mi1.02 mi15564+1945242+965242+9610988(Top 41%)3196(Top 28%)3196(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14660

Females

4484

F18-39

4484

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14561

Females

4397

F18-39

4397

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14660

Females

4484

F18-39

4484

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14478

Females

4391

F18-39

4391

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

24032

Females

9923

F18-39

9923

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14469

Females

4496

F18-39

4496

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15088

Females

4991

F18-39

4991

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15332

Females

5181

F18-39

5181

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15573

Females

5387

F18-39

5387

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16248

Females

5833

F18-39

5833

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16134

Females

5814

F18-39

5814

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21370

Females

8764

F18-39

8764

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14499

Females

5029

F18-39

5029

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13890

Females

4701

F18-39

4701

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10988

Females

3196

F18-39

3196

Passing Analysis

Category:
Athletes Passed
2583
Passed By
2076
Net Change
+507
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16071
5K → 10K85078+772#16071#15299
10K → 15K30097+203#15299#15096
15K → 20K28583+202#15096#14894
20K → Half4863-859#14894#15753
Half → 25K26327+236#15753#15517
25K → 30K231129+102#15517#15415
30K → 20M8380+3#15415#15412
20M → 21M10262+40#15412#15372
21M → 35K4171-30#15372#15402
35K → 23M81117-36#15402#15438
23M → 24M12427-415#15438#15853
24M → 40K9231+61#15853#15792
40K → 25.2M439+34#15792#15758
25.2M → Finish1962+194#15758#15564
TOTALS25832076+507
📊

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