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BOSTON MARATHON 2023

Emily Kaegi

Bib: 9330•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:39
Rank: #6071
Start → 5K
21:39 | 6:58/mi
10K· 6.21 mi
43:22
Rank: #6379 (-308)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:06
Rank: #6406 (-27)
10K → 15K
21:44 | 7:00/mi
20K· 12.43 mi
1:26:53
Rank: #6308 (+98)
15K → 20K
21:47 | 7:01/mi
Half· 13.11 mi
1:31:32
Rank: #6256 (+52)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:48:31
Rank: #6125 (+131)
Half → 25K
16:59 | 7:00/mi
30K· 18.64 mi
2:10:28
Rank: #5808 (+317)
25K → 30K
21:57 | 7:04/mi
20M
2:19:50
Rank: #5599 (+209)
30K → 20M
9:22 | 6:54/mi
21M
2:26:56
Rank: #5393 (+206)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:31:50
Rank: #5274 (+119)
21M → 35K
4:54 | 6:33/mi
23M
2:40:23
Rank: #5076 (+198)
35K → 23M
8:33 | 6:50/mi
24M
2:47:05
Rank: #4934 (+142)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:52:57
Rank: #4834 (+100)
24M → 40K
5:52 | 6:52/mi
25.2M
2:55:25
Rank: #4770 (+64)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
3:01:50
Rank: #4589 (+181)
25.2M → Finish
6:25 | 6:18/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:31:32
Pace6:59 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:30:18
Pace6:53 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3021:396:5821:39
6:58
-
10K
6.21 mi11:09:1343:226:5921:43
6:59
+0:01
15K
9.32 mi11:30:571:05:066:5921:44
7:00
+0:01
20K
12.43 mi11:52:441:26:536:5921:47
7:01
+0:01
Half
13.11 mi11:57:231:31:326:594:39
6:49
-0:12
25K
15.53 mi12:14:221:48:316:5916:59
7:00
+0:11
30K
18.64 mi12:36:192:10:287:0021:57
7:04
+0:04
20M
20.00 mi12:45:412:19:506:599:22
6:54
-0:10
21M
21.00 mi12:52:472:26:567:007:06
7:06
+0:12
35K
21.75 mi12:57:412:31:506:594:54
6:33
-0:33
23M
23.00 mi13:06:142:40:236:588:33
6:50
+0:17
24M
24.00 mi13:12:562:47:056:586:42
6:42
-0:08
40K
24.85 mi13:18:482:52:576:585:52
6:52
+0:10
25.2M
25.20 mi13:21:162:55:256:582:28
7:09
+0:17
Finish
26.22 mi13:27:413:01:506:566:25
6:18
-0:51

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

6:18 /mi

Average Pace

6:56 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:27

26% of race

Time at Steady Pace

2:15:23

74% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:56 /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 mi10:47:3021:396:5821:39
6:58
#6071
10K
6.21 mi11:09:1343:226:5921:43
6:59
#6379
15K
9.32 mi11:30:571:05:066:5921:44
7:00
#6406
20K
12.43 mi11:52:441:26:536:5921:47
7:01
#6308
Half
13.11 mi11:57:231:31:326:594:39
6:49
#6256
25K
15.53 mi12:14:221:48:316:5916:59
7:00
#6125
30K
18.64 mi12:36:192:10:287:0021:57
7:04
#5808
20M
20.00 mi12:45:412:19:506:599:22
6:54
#5599
21M
21.00 mi12:52:472:26:567:007:06
7:06
#5393
35K
21.75 mi12:57:412:31:506:594:54
6:33
#5274
23M
23.00 mi13:06:142:40:236:588:33
6:50
#5076
24M
24.00 mi13:12:562:47:056:586:42
6:42
#4934
40K
24.85 mi13:18:482:52:576:585:52
6:52
#4834
25.2M
25.20 mi13:21:162:55:256:582:28
7:09
#4770
Finish
26.22 mi13:27:413:01:506:566:25
6:18
#4589
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi60715165166535(Top 25%)638(Top 6%)638(Top 13%)
10K6.21 mi3.10 mi6379-308593-77593-776762(Top 25%)686(Top 6%)686(Top 14%)
15K9.32 mi3.11 mi6406-27606-13606-136535(Top 25%)638(Top 6%)638(Top 13%)
20K12.43 mi3.11 mi6308+98586+20586+206059(Top 23%)534(Top 5%)534(Top 11%)
Half13.11 mi0.68 mi6256+52572+14572+145468(Top 21%)416(Top 4%)416(Top 9%)
25K15.53 mi2.42 mi6125+131542+30542+305610(Top 21%)450(Top 4%)450(Top 9%)
30K18.64 mi3.11 mi5808+317484+58484+584764(Top 18%)366(Top 3%)366(Top 7%)
20M20.00 mi1.36 mi5599+209454+30454+303410(Top 13%)225(Top 2%)225(Top 5%)
21M21.00 mi1.00 mi5393+206427+27427+272655(Top 10%)160(Top 1%)160(Top 3%)
35K21.75 mi0.75 mi5274+119417+10417+102762(Top 10%)169(Top 1%)169(Top 3%)
23M23.00 mi1.25 mi5076+198400+17400+172852(Top 11%)186(Top 2%)186(Top 4%)
24M24.00 mi1.00 mi4934+142378+22378+223143(Top 12%)230(Top 2%)230(Top 5%)
40K24.85 mi0.85 mi4834+100363+15363+153165(Top 12%)265(Top 2%)265(Top 5%)
25.2M25.20 mi0.35 mi4770+64356+7356+72412(Top 9%)182(Top 2%)182(Top 4%)
Finish26.22 mi1.02 mi4589+181327+29327+291649(Top 6%)95(Top 0.8%)95(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6535

Females

638

F18-39

638

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6762

Females

686

F18-39

686

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6535

Females

638

F18-39

638

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6059

Females

534

F18-39

534

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5468

Females

416

F18-39

416

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5610

Females

450

F18-39

450

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4764

Females

366

F18-39

366

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3410

Females

225

F18-39

225

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2655

Females

160

F18-39

160

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2762

Females

169

F18-39

169

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2852

Females

186

F18-39

186

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3143

Females

230

F18-39

230

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3165

Females

265

F18-39

265

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2412

Females

182

F18-39

182

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1649

Females

95

F18-39

95

Passing Analysis

Category:
Athletes Passed
2101
Passed By
619
Net Change
+1482
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6071
5K → 10K67375-308#6071#6379
10K → 15K107134-27#6379#6406
15K → 20K15052+98#6406#6308
20K → Half531+52#6308#6256
Half → 25K15827+131#6256#6125
25K → 30K32710+317#6125#5808
30K → 20M2123+209#5808#5599
20M → 21M2071+206#5599#5393
21M → 35K1201+119#5393#5274
35K → 23M2024+198#5274#5076
23M → 24M1453+142#5076#4934
24M → 40K1055+100#4934#4834
40K → 25.2M662+64#4834#4770
25.2M → Finish1821+181#4770#4589
TOTALS2101619+1482
📊

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