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BOSTON MARATHON 2023

Jillian Blumberg

Bib: 24815•F

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:50/mi
30:32
↑ 97↓ 3451.5%
10K· 6.21 mi
9:58/mi
1:01:31
↑ 79↓ 1380.4%
15K· 9.32 mi
10:00/mi
1:32:34
↑ 67↓ 78
20K· 12.43 mi
10:31/mi
2:05:13
↑ 106↓ 860.1%
Half· 13.11 mi
10:29/mi
2:12:22
↑ 19↓ 370.5%
25K· 15.53 mi
11:45/mi
2:40:51
↑ 66↓ 880.2%
30K· 18.64 mi
11:26/mi
3:16:22
↑ 181↓ 1480.2%
20M
15:18/mi
3:37:10
↑ 64↓ 500.2%
21M
14:42/mi
3:51:52
↑ 106↓ 241.6%
35K· 21.75 mi
10:47/mi
3:59:56
↑ 17↓ 861.7%
23M
11:46/mi
4:14:40
↑ 23↓ 630.6%
24M
10:57/mi
4:25:37
↓ 821.3%
40K· 24.85 mi
11:53/mi
4:35:47
↓ 200.3%
25.2M
13:29/mi
4:40:26
↑ 13↓ 160.2%
Finish· 26.22 mi
12:33/mi
4:53:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:22
Pace10:06 /mi
2nd Half
Distance13.11 mi
Time2:40:51
Pace12:16 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1630:329:5030:32
9:50
-
10K
6.21 mi12:25:151:01:319:5430:59
9:58
+0:08
15K
9.32 mi12:56:181:32:349:5631:03
10:00
+0:02
20K
12.43 mi13:28:572:05:1310:0532:39
10:31
+0:31
Half
13.11 mi13:36:062:12:2210:067:09
10:29
-0:02
25K
15.53 mi14:04:352:40:5110:2128:29
11:45
+1:16
30K
18.64 mi14:40:063:16:2210:3235:31
11:26
-0:19
20M
20.00 mi15:00:543:37:1010:5120:48
15:18
+3:52
21M
21.00 mi15:15:363:51:5211:0214:42
14:42
-0:36
35K
21.75 mi15:23:403:59:5611:028:04
10:47
-3:55
23M
23.00 mi15:38:244:14:4011:0414:44
11:46
+0:59
24M
24.00 mi15:49:214:25:3711:0410:57
10:57
-0:49
40K
24.85 mi15:59:314:35:4711:0610:10
11:53
+0:56
25.2M
25.20 mi16:04:104:40:2611:084:39
13:29
+1:36
Finish
26.22 mi16:16:574:53:1311:1112:47
12:33
-0:56

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

9:50 /mi

Average Pace

11:11 /mi

Slowest Pace

15:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12:22

45% of race

Time at Steady Pace

1:47:55

37% of race

Time at Slower Pace

52:56

18% of race

Average Pace: 11:11 /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 mi11:54:1630:329:5030:32
9:50
#23006
10K
6.21 mi12:25:151:01:319:5430:59
9:58
#23388
15K
9.32 mi12:56:181:32:349:5631:03
10:00
#23452
20K
12.43 mi13:28:572:05:1310:0532:39
10:31
#23586
Half
13.11 mi13:36:062:12:2210:067:09
10:29
#23626
25K
15.53 mi14:04:352:40:5110:2128:29
11:45
#23878
30K
18.64 mi14:40:063:16:2210:3235:31
11:26
#23878
20M
20.00 mi15:00:543:37:1010:5120:48
15:18
#24298
21M
21.00 mi15:15:363:51:5211:0214:42
14:42
#24435
35K
21.75 mi15:23:403:59:5611:028:04
10:47
#24372
23M
23.00 mi15:38:244:14:4011:0414:44
11:46
#24340
24M
24.00 mi15:49:214:25:3711:0410:57
10:57
#24296
40K
24.85 mi15:59:314:35:4711:0610:10
11:53
#24283
25.2M
25.20 mi16:04:104:40:2611:084:39
13:29
#24285
Finish
26.22 mi16:16:574:53:1311:1112:47
12:33
#24390
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi230069394939423497(Top 88%)9610(Top 84%)9610(Top 197%)
10K6.21 mi3.10 mi23388-3829566-1729566-17223635(Top 89%)9695(Top 85%)9695(Top 199%)
15K9.32 mi3.11 mi23452-649586-209586-2023497(Top 88%)9610(Top 84%)9610(Top 197%)
20K12.43 mi3.11 mi23586-1349654-689654-6823849(Top 90%)9822(Top 86%)9822(Top 201%)
Half13.11 mi0.68 mi23626-409683-299683-2924199(Top 91%)10036(Top 88%)10036(Top 205%)
25K15.53 mi2.42 mi23878-2529838-1559838-15524936(Top 94%)10482(Top 92%)10482(Top 215%)
30K18.64 mi3.11 mi238789848-109848-1023765(Top 89%)9879(Top 86%)9879(Top 202%)
20M20.00 mi1.36 mi24298-42010104-25610104-25626385(Top 99%)11318(Top 99%)11318(Top 232%)
21M21.00 mi1.00 mi24435-13710184-8010184-8025565(Top 96%)10886(Top 95%)10886(Top 223%)
35K21.75 mi0.75 mi24372+6310158+2610158+2622914(Top 86%)9556(Top 84%)9556(Top 196%)
23M23.00 mi1.25 mi24340+3210150+810150+823670(Top 89%)9939(Top 87%)9939(Top 204%)
24M24.00 mi1.00 mi24296+4410131+1910131+1922969(Top 86%)9621(Top 84%)9621(Top 197%)
40K24.85 mi0.85 mi24283+1310127+410127+423763(Top 89%)10066(Top 88%)10066(Top 206%)
25.2M25.20 mi0.35 mi24285-210132-510132-524513(Top 92%)10443(Top 91%)10443(Top 214%)
Finish26.22 mi1.02 mi24390-10510198-6610198-6625713(Top 97%)11034(Top 97%)11034(Top 226%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

23497

Females

9610

F18-39

9610

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

23635

Females

9695

F18-39

9695

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

23497

Females

9610

F18-39

9610

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23849

Females

9822

F18-39

9822

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24199

Females

10036

F18-39

10036

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

24936

Females

10482

F18-39

10482

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23765

Females

9879

F18-39

9879

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26385

Females

11318

F18-39

11318

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25565

Females

10886

F18-39

10886

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22914

Females

9556

F18-39

9556

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23670

Females

9939

F18-39

9939

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22969

Females

9621

F18-39

9621

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23763

Females

10066

F18-39

10066

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24513

Females

10443

F18-39

10443

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25713

Females

11034

F18-39

11034

Passing Analysis

Category:
Athletes Passed
654
Passed By
2038
Net Change
-1384
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23006
5K → 10K84466-382#23006#23388
10K → 15K103167-64#23388#23452
15K → 20K82216-134#23452#23586
20K → Half1252-40#23586#23626
Half → 25K29281-252#23626#23878
25K → 30K1131130#23878#23878
30K → 20M2422-420#23878#24298
20M → 21M9146-137#24298#24435
21M → 35K674+63#24435#24372
35K → 23M4917+32#24372#24340
23M → 24M506+44#24340#24296
24M → 40K3724+13#24296#24283
40K → 25.2M1214-2#24283#24285
25.2M → Finish5110-105#24285#24390
TOTALS6542038-1384
📊

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