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BOSTON MARATHON 2023

Jonna Bier

Bib: 13665•F

WI

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

Start
0:00:00
Race begins
5K· 3.11 mi
27:51
Rank: #20282
Start → 5K
27:51 | 8:58/mi
10K· 6.21 mi
55:14
Rank: #20144 (+138)
5K → 10K
27:23 | 8:49/mi
15K· 9.32 mi
1:23:53
Rank: #20572 (-428)
10K → 15K
28:39 | 9:13/mi
20K· 12.43 mi
1:51:26
Rank: #20200 (+372)
15K → 20K
27:33 | 8:52/mi
Half· 13.11 mi
1:57:24
Rank: #20157 (+43)
20K → Half
5:58 | 8:45/mi
25K· 15.53 mi
2:19:30
Rank: #20028 (+129)
Half → 25K
22:06 | 9:07/mi
30K· 18.64 mi
2:48:58
Rank: #19898 (+130)
25K → 30K
29:28 | 9:29/mi
20M
3:01:23
Rank: #19687 (+211)
30K → 20M
12:25 | 9:08/mi
21M
3:11:10
Rank: #19521 (+166)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
3:17:43
Rank: #19422 (+99)
21M → 35K
6:33 | 8:45/mi
23M
3:29:06
Rank: #19260 (+162)
35K → 23M
11:23 | 9:05/mi
24M
3:38:06
Rank: #19169 (+91)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:45:48
Rank: #19062 (+107)
24M → 40K
7:42 | 9:00/mi
25.2M
3:49:03
Rank: #19002 (+60)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:57:56
Rank: #18935 (+67)
25.2M → Finish
8:53 | 8:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:24
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:00:32
Pace9:12 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5927:518:5827:51
8:58
-
10K
6.21 mi11:51:2255:148:5327:23
8:49
-0:09
15K
9.32 mi12:20:011:23:539:0028:39
9:13
+0:24
20K
12.43 mi12:47:341:51:268:5827:33
8:52
-0:21
Half
13.11 mi12:53:321:57:248:575:58
8:45
-0:07
25K
15.53 mi13:15:382:19:308:5922:06
9:07
+0:22
30K
18.64 mi13:45:062:48:589:0429:28
9:29
+0:22
20M
20.00 mi13:57:313:01:239:0412:25
9:08
-0:21
21M
21.00 mi14:07:183:11:109:069:47
9:47
+0:39
35K
21.75 mi14:13:513:17:439:056:33
8:45
-1:02
23M
23.00 mi14:25:143:29:069:0511:23
9:05
+0:20
24M
24.00 mi14:34:143:38:069:059:00
9:00
-0:05
40K
24.85 mi14:41:563:45:489:057:42
9:00
0:00
25.2M
25.20 mi14:45:113:49:039:053:15
9:25
+0:25
Finish
26.22 mi14:54:043:57:569:058:53
8:43
-0:42

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

8:43 /mi

Average Pace

9:05 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:48:09

96% of race

Time at Steady Pace

9:47

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:04 /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 mi11:23:5927:518:5827:51
8:58
#20282
10K
6.21 mi11:51:2255:148:5327:23
8:49
#20144
15K
9.32 mi12:20:011:23:539:0028:39
9:13
#20572
20K
12.43 mi12:47:341:51:268:5827:33
8:52
#20200
Half
13.11 mi12:53:321:57:248:575:58
8:45
#20157
25K
15.53 mi13:15:382:19:308:5922:06
9:07
#20028
30K
18.64 mi13:45:062:48:589:0429:28
9:29
#19898
20M
20.00 mi13:57:313:01:239:0412:25
9:08
#19687
21M
21.00 mi14:07:183:11:109:069:47
9:47
#19521
35K
21.75 mi14:13:513:17:439:056:33
8:45
#19422
23M
23.00 mi14:25:143:29:069:0511:23
9:05
#19260
24M
24.00 mi14:34:143:38:069:059:00
9:00
#19169
40K
24.85 mi14:41:563:45:489:057:42
9:00
#19062
25.2M
25.20 mi14:45:113:49:039:053:15
9:25
#19002
Finish
26.22 mi14:54:043:57:569:058:53
8:43
#18935
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi202827989798921379(Top 80%)8436(Top 74%)8436(Top 173%)
10K6.21 mi3.10 mi20144+1387849+1407849+14020016(Top 75%)7710(Top 67%)7710(Top 158%)
15K9.32 mi3.11 mi20572-4288059-2108059-21021379(Top 80%)8436(Top 74%)8436(Top 173%)
20K12.43 mi3.11 mi20200+3727832+2277832+22719057(Top 72%)7122(Top 62%)7122(Top 146%)
Half13.11 mi0.68 mi20157+437802+307802+3019239(Top 72%)7230(Top 63%)7230(Top 148%)
25K15.53 mi2.42 mi20028+1297722+807722+8019493(Top 73%)7419(Top 65%)7419(Top 152%)
30K18.64 mi3.11 mi19898+1307674+487674+4819375(Top 73%)7399(Top 65%)7399(Top 151%)
20M20.00 mi1.36 mi19687+2117550+1247550+12417277(Top 65%)6328(Top 55%)6328(Top 130%)
21M21.00 mi1.00 mi19521+1667470+807470+8017226(Top 65%)6326(Top 55%)6326(Top 130%)
35K21.75 mi0.75 mi19422+997418+527418+5216779(Top 63%)6167(Top 54%)6167(Top 126%)
23M23.00 mi1.25 mi19260+1627328+907328+9016526(Top 62%)6044(Top 53%)6044(Top 124%)
24M24.00 mi1.00 mi19169+917286+427286+4217268(Top 65%)6506(Top 57%)6506(Top 133%)
40K24.85 mi0.85 mi19062+1077235+517235+5116221(Top 61%)5992(Top 52%)5992(Top 123%)
25.2M25.20 mi0.35 mi19002+607204+317204+3114928(Top 56%)5286(Top 46%)5286(Top 108%)
Finish26.22 mi1.02 mi18935+677175+297175+2916611(Top 62%)6165(Top 54%)6165(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21379

Females

8436

F18-39

8436

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

20016

Females

7710

F18-39

7710

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21379

Females

8436

F18-39

8436

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

19057

Females

7122

F18-39

7122

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

19239

Females

7230

F18-39

7230

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19493

Females

7419

F18-39

7419

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19375

Females

7399

F18-39

7399

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17277

Females

6328

F18-39

6328

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17226

Females

6326

F18-39

6326

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16779

Females

6167

F18-39

6167

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16526

Females

6044

F18-39

6044

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17268

Females

6506

F18-39

6506

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16221

Females

5992

F18-39

5992

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14928

Females

5286

F18-39

5286

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

16611

Females

6165

F18-39

6165

Passing Analysis

Category:
Athletes Passed
2350
Passed By
1003
Net Change
+1347
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20282
5K → 10K390252+138#20282#20144
10K → 15K62490-428#20144#20572
15K → 20K40028+372#20572#20200
20K → Half5512+43#20200#20157
Half → 25K19465+129#20157#20028
25K → 30K21787+130#20028#19898
30K → 20M2121+211#19898#19687
20M → 21M1748+166#19687#19521
21M → 35K1067+99#19521#19422
35K → 23M1708+162#19422#19260
23M → 24M10514+91#19260#19169
24M → 40K1169+107#19169#19062
40K → 25.2M644+60#19062#19002
25.2M → Finish8518+67#19002#18935
TOTALS23501003+1347
📊

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