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BOSTON MARATHON 2023

Erin Jaffke

Bib: 2474•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 8%
Division (F18-39)
#0 / 4884
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:57
Rank: #8748
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
45:51
Rank: #9034 (-286)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:09:05
Rank: #9295 (-261)
10K → 15K
23:14 | 7:29/mi
20K· 12.43 mi
1:32:07
Rank: #9100 (+195)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:37:07
Rank: #9086 (+14)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:55:15
Rank: #8976 (+110)
Half → 25K
18:08 | 7:29/mi
30K· 18.64 mi
2:18:38
Rank: #8661 (+315)
25K → 30K
23:23 | 7:32/mi
20M
2:28:39
Rank: #8416 (+245)
30K → 20M
10:01 | 7:22/mi
21M
2:36:11
Rank: #8175 (+241)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:41:25
Rank: #8034 (+141)
21M → 35K
5:14 | 7:00/mi
23M
2:50:11
Rank: #7682 (+352)
35K → 23M
8:46 | 7:00/mi
24M
2:56:49
Rank: #7393 (+289)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
3:02:36
Rank: #7175 (+218)
24M → 40K
5:47 | 6:46/mi
25.2M
3:05:04
Rank: #7061 (+114)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
3:11:56
Rank: #6883 (+178)
25.2M → Finish
6:52 | 6:44/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:07
Pace7:24 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:49
Pace7:14 /mi
📊Negative Split: 2.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:4322:577:2322:57
7:23
-
10K
6.21 mi10:50:3745:517:2322:54
7:22
-0:01
15K
9.32 mi11:13:511:09:057:2523:14
7:29
+0:07
20K
12.43 mi11:36:531:32:077:2523:02
7:25
-0:04
Half
13.11 mi11:41:531:37:077:245:00
7:20
-0:05
25K
15.53 mi12:00:011:55:157:2518:08
7:29
+0:09
30K
18.64 mi12:23:242:18:387:2623:23
7:32
+0:03
20M
20.00 mi12:33:252:28:397:2610:01
7:22
-0:10
21M
21.00 mi12:40:572:36:117:267:32
7:32
+0:10
35K
21.75 mi12:46:112:41:257:255:14
7:00
-0:32
23M
23.00 mi12:54:572:50:117:248:46
7:00
0:00
24M
24.00 mi13:01:352:56:497:226:38
6:38
-0:22
40K
24.85 mi13:07:223:02:367:215:47
6:46
+0:08
25.2M
25.20 mi13:09:503:05:047:212:28
7:09
+0:23
Finish
26.22 mi13:16:423:11:567:206:52
6:44
-0:25

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

6:38 /mi

Average Pace

7:20 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:45

19% of race

Time at Steady Pace

2:36:11

81% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:19 /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 mi10:27:4322:577:2322:57
7:23
#8748
10K
6.21 mi10:50:3745:517:2322:54
7:22
#9034
15K
9.32 mi11:13:511:09:057:2523:14
7:29
#9295
20K
12.43 mi11:36:531:32:077:2523:02
7:25
#9100
Half
13.11 mi11:41:531:37:077:245:00
7:20
#9086
25K
15.53 mi12:00:011:55:157:2518:08
7:29
#8976
30K
18.64 mi12:23:242:18:387:2623:23
7:32
#8661
20M
20.00 mi12:33:252:28:397:2610:01
7:22
#8416
21M
21.00 mi12:40:572:36:117:267:32
7:32
#8175
35K
21.75 mi12:46:112:41:257:255:14
7:00
#8034
23M
23.00 mi12:54:572:50:117:248:46
7:00
#7682
24M
24.00 mi13:01:352:56:497:226:38
6:38
#7393
40K
24.85 mi13:07:223:02:367:215:47
6:46
#7175
25.2M
25.20 mi13:09:503:05:047:212:28
7:09
#7061
Finish
26.22 mi13:16:423:11:567:206:52
6:44
#6883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi87481297129710025(Top 38%)1858(Top 16%)1858(Top 38%)
10K6.21 mi3.10 mi9034-2861434-1371434-1379414(Top 35%)1597(Top 14%)1597(Top 33%)
15K9.32 mi3.11 mi9295-2611542-1081542-10810025(Top 38%)1858(Top 16%)1858(Top 38%)
20K12.43 mi3.11 mi9100+1951479+631479+638640(Top 32%)1354(Top 12%)1354(Top 28%)
Half13.11 mi0.68 mi9086+141475+41475+48920(Top 34%)1468(Top 13%)1468(Top 30%)
25K15.53 mi2.42 mi8976+1101436+391436+398648(Top 32%)1412(Top 12%)1412(Top 29%)
30K18.64 mi3.11 mi8661+3151361+751361+757422(Top 28%)1082(Top 9%)1082(Top 22%)
20M20.00 mi1.36 mi8416+2451291+701291+706064(Top 23%)723(Top 6%)723(Top 15%)
21M21.00 mi1.00 mi8175+2411221+701221+704778(Top 18%)469(Top 4%)469(Top 10%)
35K21.75 mi0.75 mi8034+1411179+421179+425374(Top 20%)599(Top 5%)599(Top 12%)
23M23.00 mi1.25 mi7682+3521059+1201059+1203833(Top 14%)301(Top 3%)301(Top 6%)
24M24.00 mi1.00 mi7393+289987+72987+722796(Top 11%)196(Top 2%)196(Top 4%)
40K24.85 mi0.85 mi7175+218930+57930+572703(Top 10%)213(Top 2%)213(Top 4%)
25.2M25.20 mi0.35 mi7061+114908+22908+222420(Top 9%)185(Top 2%)185(Top 4%)
Finish26.22 mi1.02 mi6883+178877+31877+313778(Top 14%)426(Top 4%)426(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10025

Females

1858

F18-39

1858

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9414

Females

1597

F18-39

1597

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10025

Females

1858

F18-39

1858

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8640

Females

1354

F18-39

1354

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

8920

Females

1468

F18-39

1468

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8648

Females

1412

F18-39

1412

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7422

Females

1082

F18-39

1082

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6064

Females

723

F18-39

723

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4778

Females

469

F18-39

469

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5374

Females

599

F18-39

599

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3833

Females

301

F18-39

301

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2796

Females

196

F18-39

196

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2703

Females

213

F18-39

213

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2420

Females

185

F18-39

185

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3778

Females

426

F18-39

426

Passing Analysis

Category:
Athletes Passed
2799
Passed By
934
Net Change
+1865
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8748
5K → 10K160446-286#8748#9034
10K → 15K65326-261#9034#9295
15K → 20K24146+195#9295#9100
20K → Half3420+14#9100#9086
Half → 25K16050+110#9086#8976
25K → 30K34530+315#8976#8661
30K → 20M2516+245#8661#8416
20M → 21M2454+241#8416#8175
21M → 35K1432+141#8175#8034
35K → 23M3520+352#8034#7682
23M → 24M2890+289#7682#7393
24M → 40K2202+218#7393#7175
40K → 25.2M1140+114#7175#7061
25.2M → Finish1802+178#7061#6883
TOTALS2799934+1865
📊

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