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BOSTON MARATHON 2023

Jennifer Symons

Bib: 19296•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
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
25:08
Rank: #14652
Start → 5K
25:08 | 8:05/mi
10K· 6.21 mi
50:07
Rank: #14878 (-226)
5K → 10K
24:59 | 8:02/mi
15K· 9.32 mi
1:15:25
Rank: #15067 (-189)
10K → 15K
25:18 | 8:09/mi
20K· 12.43 mi
1:40:45
Rank: #14916 (+151)
15K → 20K
25:20 | 8:09/mi
Half· 13.11 mi
1:46:08
Rank: #14855 (+61)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:06:19
Rank: #14854 (+1)
Half → 25K
20:11 | 8:19/mi
30K· 18.64 mi
2:33:53
Rank: #15164 (-310)
25K → 30K
27:34 | 8:52/mi
20M
2:45:42
Rank: #15134 (+30)
30K → 20M
11:49 | 8:42/mi
21M
2:57:07
Rank: #15755 (-621)
20M → 21M
11:25 | 11:25/mi
35K· 21.75 mi
3:03:23
Rank: #15697 (+58)
21M → 35K
6:16 | 8:23/mi
23M
3:14:31
Rank: #15663 (+34)
35K → 23M
11:08 | 8:54/mi
24M
3:23:09
Rank: #15638 (+25)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:30:40
Rank: #15625 (+13)
24M → 40K
7:31 | 8:47/mi
25.2M
3:34:36
Rank: #15778 (-153)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
3:43:20
Rank: #15763 (+15)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:08
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:57:12
Pace8:56 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4425:088:0525:08
8:05
-
10K
6.21 mi11:41:4350:078:0424:59
8:02
-0:03
15K
9.32 mi12:07:011:15:258:0525:18
8:09
+0:07
20K
12.43 mi12:32:211:40:458:0625:20
8:09
0:00
Half
13.11 mi12:37:441:46:088:065:23
7:53
-0:16
25K
15.53 mi12:57:552:06:198:0820:11
8:19
+0:26
30K
18.64 mi13:25:292:33:538:1527:34
8:52
+0:33
20M
20.00 mi13:37:182:45:428:1711:49
8:42
-0:10
21M
21.00 mi13:48:432:57:078:2611:25
11:25
+2:43
35K
21.75 mi13:54:593:03:238:266:16
8:23
-3:02
23M
23.00 mi14:06:073:14:318:2711:08
8:54
+0:31
24M
24.00 mi14:14:453:23:098:288:38
8:38
-0:16
40K
24.85 mi14:22:163:30:408:297:31
8:47
+0:09
25.2M
25.20 mi14:26:123:34:368:313:56
11:24
+2:37
Finish
26.22 mi14:34:563:43:208:318:44
8:34
-2:50

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

7:53 /mi

Average Pace

8:31 /mi

Slowest Pace

11:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:22

14% of race

Time at Steady Pace

2:57:37

80% of race

Time at Slower Pace

15:21

7% of race

Average Pace: 8:31 /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 mi11:16:4425:088:0525:08
8:05
#14652
10K
6.21 mi11:41:4350:078:0424:59
8:02
#14878
15K
9.32 mi12:07:011:15:258:0525:18
8:09
#15067
20K
12.43 mi12:32:211:40:458:0625:20
8:09
#14916
Half
13.11 mi12:37:441:46:088:065:23
7:53
#14855
25K
15.53 mi12:57:552:06:198:0820:11
8:19
#14854
30K
18.64 mi13:25:292:33:538:1527:34
8:52
#15164
20M
20.00 mi13:37:182:45:428:1711:49
8:42
#15134
21M
21.00 mi13:48:432:57:078:2611:25
11:25
#15755
35K
21.75 mi13:54:593:03:238:266:16
8:23
#15697
23M
23.00 mi14:06:073:14:318:2711:08
8:54
#15663
24M
24.00 mi14:14:453:23:098:288:38
8:38
#15638
40K
24.85 mi14:22:163:30:408:297:31
8:47
#15625
25.2M
25.20 mi14:26:123:34:368:313:56
11:24
#15778
Finish
26.22 mi14:34:563:43:208:318:44
8:34
#15763
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi146524421442115469(Top 58%)4963(Top 43%)4963(Top 102%)
10K6.21 mi3.10 mi14878-2264578-1574578-15715125(Top 57%)4745(Top 42%)4745(Top 97%)
15K9.32 mi3.11 mi15067-1894705-1274705-12715469(Top 58%)4963(Top 43%)4963(Top 102%)
20K12.43 mi3.11 mi14916+1514630+754630+7514647(Top 55%)4498(Top 39%)4498(Top 92%)
Half13.11 mi0.68 mi14855+614597+334597+3313593(Top 51%)3869(Top 34%)3869(Top 79%)
25K15.53 mi2.42 mi14854+14621-244621-2415117(Top 57%)4922(Top 43%)4922(Top 101%)
30K18.64 mi3.11 mi15164-3104861-2404861-24016504(Top 62%)5790(Top 51%)5790(Top 119%)
20M20.00 mi1.36 mi15134+304860+14860+114858(Top 56%)4919(Top 43%)4919(Top 101%)
21M21.00 mi1.00 mi15755-6215270-4105270-41021718(Top 82%)8838(Top 77%)8838(Top 181%)
35K21.75 mi0.75 mi15697+585257+135257+1314621(Top 55%)4903(Top 43%)4903(Top 100%)
23M23.00 mi1.25 mi15663+345263-65263-615516(Top 58%)5461(Top 48%)5461(Top 112%)
24M24.00 mi1.00 mi15638+255262+15262+115288(Top 57%)5400(Top 47%)5400(Top 111%)
40K24.85 mi0.85 mi15625+135259+35259+315067(Top 57%)5336(Top 47%)5336(Top 109%)
25.2M25.20 mi0.35 mi15778-1535354-955354-9521354(Top 80%)8773(Top 77%)8773(Top 180%)
Finish26.22 mi1.02 mi15763+155351+35351+315839(Top 59%)5718(Top 50%)5718(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15469

Females

4963

F18-39

4963

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15125

Females

4745

F18-39

4745

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15469

Females

4963

F18-39

4963

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14647

Females

4498

F18-39

4498

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

13593

Females

3869

F18-39

3869

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15117

Females

4922

F18-39

4922

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16504

Females

5790

F18-39

5790

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14858

Females

4919

F18-39

4919

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21718

Females

8838

F18-39

8838

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14621

Females

4903

F18-39

4903

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

15516

Females

5461

F18-39

5461

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15288

Females

5400

F18-39

5400

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15067

Females

5336

F18-39

5336

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21354

Females

8773

F18-39

8773

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15839

Females

5718

F18-39

5718

Passing Analysis

Category:
Athletes Passed
1367
Passed By
2478
Net Change
-1111
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14652
5K → 10K203429-226#14652#14878
10K → 15K123312-189#14878#15067
15K → 20K256105+151#15067#14916
20K → Half709+61#14916#14855
Half → 25K144143+1#14855#14854
25K → 30K84394-310#14854#15164
30K → 20M9767+30#15164#15134
20M → 21M9630-621#15134#15755
21M → 35K7214+58#15755#15697
35K → 23M9359+34#15697#15663
23M → 24M7651+25#15663#15638
24M → 40K7057+13#15638#15625
40K → 25.2M7160-153#15625#15778
25.2M → Finish6348+15#15778#15763
TOTALS13672478-1111
📊

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