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BOSTON MARATHON 2023

Erin Jackson

Bib: 22088•F

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 45%
Masters (Masters Women)
#0 / 6539
Top 34%
Division (F45-49)
#0 / 1817
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:57
Rank: #16523
Start → 5K
8:21/mi
25:57 split
10K· 6.21 mi
51:27
Rank: #16366 (+157)
5K → 10K
8:12/mi
25:30 split
15K· 9.32 mi
1:17:09
Rank: #16349 (+17)
10K → 15K
8:16/mi
25:42 split
20K· 12.43 mi
1:42:59
Rank: #16167 (+182)
15K → 20K
8:19/mi
25:50 split
Half· 13.11 mi
1:48:34
Rank: #16143 (+24)
20K → Half
8:11/mi
5:35 split
25K· 15.53 mi
2:08:39
Rank: #15916 (+227)
Half → 25K
8:17/mi
20:05 split
30K· 18.64 mi
2:35:03
Rank: #15609 (+307)
25K → 30K
8:30/mi
26:24 split
20M
2:46:46
Rank: #15486 (+123)
30K → 20M
8:37/mi
11:43 split
21M
2:55:50
Rank: #15342 (+144)
20M → 21M
9:04/mi
9:04 split
35K· 21.75 mi
3:02:07
Rank: #15304 (+38)
21M → 35K
8:24/mi
6:17 split
23M
3:13:08
Rank: #15272 (+32)
35K → 23M
8:48/mi
11:01 split
24M
3:21:50
Rank: #15284 (-12)
23M → 24M
8:42/mi
8:42 split
40K· 24.85 mi
3:29:26
Rank: #15306 (-22)
24M → 40K
8:53/mi
7:36 split
25.2M
3:32:48
Rank: #15314 (-8)
40K → 25.2M
9:46/mi
3:22 split
Finish· 26.22 mi
3:41:50
Rank: #15401 (-87)
25.2M → Finish
8:52/mi
9:02 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:34
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:53:16
Pace8:38 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2625:578:2125:57
8:21
-
10K
6.21 mi11:45:5651:278:1725:30
8:12
-0:09
15K
9.32 mi12:11:381:17:098:1725:42
8:16
+0:04
20K
12.43 mi12:37:281:42:598:1725:50
8:19
+0:03
Half
13.11 mi12:43:031:48:348:175:35
8:11
-0:08
25K
15.53 mi13:03:082:08:398:1720:05
8:17
+0:06
30K
18.64 mi13:29:322:35:038:1926:24
8:30
+0:13
20M
20.00 mi13:41:152:46:468:2011:43
8:37
+0:07
21M
21.00 mi13:50:192:55:508:229:04
9:04
+0:27
35K
21.75 mi13:56:363:02:078:226:17
8:24
-0:40
23M
23.00 mi14:07:373:13:088:2411:01
8:48
+0:24
24M
24.00 mi14:16:193:21:508:258:42
8:42
-0:06
40K
24.85 mi14:23:553:29:268:267:36
8:53
+0:11
25.2M
25.20 mi14:27:173:32:488:273:22
9:46
+0:53
Finish
26.22 mi14:36:193:41:508:289:02
8:52
-0:54

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

8:11 /mi

Average Pace

8:28 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:24

94% of race

Time at Steady Pace

9:04

4% of race

Time at Slower Pace

3:22

2% of race

Average Pace: 8:28 /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 mi11:20:2625:578:2125:57
8:21
#16523
10K
6.21 mi11:45:5651:278:1725:30
8:12
#16366
15K
9.32 mi12:11:381:17:098:1725:42
8:16
#16349
20K
12.43 mi12:37:281:42:598:1725:50
8:19
#16167
Half
13.11 mi12:43:031:48:348:175:35
8:11
#16143
25K
15.53 mi13:03:082:08:398:1720:05
8:17
#15916
30K
18.64 mi13:29:322:35:038:1926:24
8:30
#15609
20M
20.00 mi13:41:152:46:468:2011:43
8:37
#15486
21M
21.00 mi13:50:192:55:508:229:04
9:04
#15342
35K
21.75 mi13:56:363:02:078:226:17
8:24
#15304
23M
23.00 mi14:07:373:13:088:2411:01
8:48
#15272
24M
24.00 mi14:16:193:21:508:258:42
8:42
#15284
40K
24.85 mi14:23:553:29:268:267:36
8:53
#15306
25.2M
25.20 mi14:27:173:32:488:273:22
9:46
#15314
Finish
26.22 mi14:36:193:41:508:289:02
8:52
#15401
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi165235616561616364(Top 61%)5512(Top 48%)5512(Top 303%)
10K6.21 mi3.10 mi16366+1575504+1125504+11216317(Top 61%)5463(Top 48%)5463(Top 301%)
15K9.32 mi3.11 mi16349+175498+65498+616364(Top 61%)5512(Top 48%)5512(Top 303%)
20K12.43 mi3.11 mi16167+1825404+945404+9415702(Top 59%)5164(Top 45%)5164(Top 284%)
Half13.11 mi0.68 mi16143+245400+45400+415738(Top 59%)5144(Top 45%)5144(Top 283%)
25K15.53 mi2.42 mi15916+2275282+1185282+11814865(Top 56%)4747(Top 42%)4747(Top 261%)
30K18.64 mi3.11 mi15609+3075130+1525130+15214314(Top 54%)4518(Top 40%)4518(Top 249%)
20M20.00 mi1.36 mi15486+1235083+475083+4714438(Top 54%)4672(Top 41%)4672(Top 257%)
21M21.00 mi1.00 mi15342+1445020+635020+6313827(Top 52%)4405(Top 39%)4405(Top 242%)
35K21.75 mi0.75 mi15304+385009+115009+1114760(Top 55%)4974(Top 44%)4974(Top 274%)
23M23.00 mi1.25 mi15272+325010-15010-115001(Top 56%)5172(Top 45%)5172(Top 285%)
24M24.00 mi1.00 mi15284-125032-225032-2215678(Top 59%)5627(Top 49%)5627(Top 310%)
40K24.85 mi0.85 mi15306-225064-325064-3215573(Top 58%)5618(Top 49%)5618(Top 309%)
25.2M25.20 mi0.35 mi15314-85080-165080-1616399(Top 62%)6093(Top 53%)6093(Top 335%)
Finish26.22 mi1.02 mi15401-875148-685148-6817350(Top 65%)6558(Top 57%)6558(Top 361%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16364

Females

5512

F45-49

5512

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16317

Females

5463

F45-49

5463

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16364

Females

5512

F45-49

5512

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15702

Females

5164

F45-49

5164

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15738

Females

5144

F45-49

5144

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14865

Females

4747

F45-49

4747

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14314

Females

4518

F45-49

4518

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14438

Females

4672

F45-49

4672

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13827

Females

4405

F45-49

4405

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14760

Females

4974

F45-49

4974

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15001

Females

5172

F45-49

5172

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15678

Females

5627

F45-49

5627

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15573

Females

5618

F45-49

5618

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16399

Females

6093

F45-49

6093

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

17350

Females

6558

F45-49

6558

Passing Analysis

Category:
Athletes Passed
2192
Passed By
1070
Net Change
+1122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16523
5K → 10K388231+157#16523#16366
10K → 15K202185+17#16366#16349
15K → 20K26482+182#16349#16167
20K → Half5531+24#16167#16143
Half → 25K26033+227#16143#15916
25K → 30K35447+307#15916#15609
30K → 20M14522+123#15609#15486
20M → 21M16824+144#15486#15342
21M → 35K6224+38#15342#15304
35K → 23M10371+32#15304#15272
23M → 24M6678-12#15272#15284
24M → 40K5476-22#15284#15306
40K → 25.2M2836-8#15306#15314
25.2M → Finish43130-87#15314#15401
TOTALS21921070+1122
📊

Passing Visuals

Category:
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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