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BOSTON MARATHON 2023

Gwen Li

Bib: 16161•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 29%
Masters (Masters Women)
#0 / 6539
Top 16%
Division (F50-54)
#0 / 1207
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:45
Rank: #8276
Start → 5K
22:45 | 7:19/mi
10K· 6.21 mi
45:29
Rank: #8588 (-312)
5K → 10K
22:44 | 7:19/mi
15K· 9.32 mi
1:08:36
Rank: #8918 (-330)
10K → 15K
23:07 | 7:26/mi
20K· 12.43 mi
1:32:18
Rank: #9212 (-294)
15K → 20K
23:42 | 7:38/mi
Half· 13.11 mi
1:37:25
Rank: #9263 (-51)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:56:24
Rank: #9589 (-326)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:22:24
Rank: #10290 (-701)
25K → 30K
26:00 | 8:22/mi
20M
2:34:02
Rank: #10568 (-278)
30K → 20M
11:38 | 8:34/mi
21M
2:43:35
Rank: #10928 (-360)
20M → 21M
9:33 | 9:33/mi
35K· 21.75 mi
2:49:50
Rank: #11070 (-142)
21M → 35K
6:15 | 8:21/mi
23M
3:01:19
Rank: #11494 (-424)
35K → 23M
11:29 | 9:10/mi
24M
3:10:12
Rank: #11791 (-297)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:17:59
Rank: #12015 (-224)
24M → 40K
7:47 | 9:06/mi
25.2M
3:21:25
Rank: #12118 (-103)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:30:33
Rank: #12423 (-305)
25.2M → Finish
9:08 | 8:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:25
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:53:08
Pace8:38 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:4922:457:1922:45
7:19
-
10K
6.21 mi11:35:3345:297:1922:44
7:19
0:00
15K
9.32 mi11:58:401:08:367:2223:07
7:26
+0:07
20K
12.43 mi12:22:221:32:187:2623:42
7:38
+0:12
Half
13.11 mi12:27:291:37:257:265:07
7:30
-0:08
25K
15.53 mi12:46:281:56:247:3018:59
7:50
+0:20
30K
18.64 mi13:12:282:22:247:3826:00
8:22
+0:32
20M
20.00 mi13:24:062:34:027:4211:38
8:34
+0:12
21M
21.00 mi13:33:392:43:357:479:33
9:33
+0:59
35K
21.75 mi13:39:542:49:507:496:15
8:21
-1:12
23M
23.00 mi13:51:233:01:197:5311:29
9:10
+0:49
24M
24.00 mi14:00:163:10:127:568:53
8:53
-0:17
40K
24.85 mi14:08:033:17:597:587:47
9:06
+0:13
25.2M
25.20 mi14:11:293:21:258:003:26
9:57
+0:51
Finish
26.22 mi14:20:373:30:338:029:08
8:58
-0:59

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

7:19 /mi

Average Pace

8:02 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:24

55% of race

Time at Steady Pace

43:53

21% of race

Time at Slower Pace

50:16

24% of race

Average Pace: 8:02 /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 mi11:12:4922:457:1922:45
7:19
#8276
10K
6.21 mi11:35:3345:297:1922:44
7:19
#8588
15K
9.32 mi11:58:401:08:367:2223:07
7:26
#8918
20K
12.43 mi12:22:221:32:187:2623:42
7:38
#9212
Half
13.11 mi12:27:291:37:257:265:07
7:30
#9263
25K
15.53 mi12:46:281:56:247:3018:59
7:50
#9589
30K
18.64 mi13:12:282:22:247:3826:00
8:22
#10290
20M
20.00 mi13:24:062:34:027:4211:38
8:34
#10568
21M
21.00 mi13:33:392:43:357:479:33
9:33
#10928
35K
21.75 mi13:39:542:49:507:496:15
8:21
#11070
23M
23.00 mi13:51:233:01:197:5311:29
9:10
#11494
24M
24.00 mi14:00:163:10:127:568:53
8:53
#11791
40K
24.85 mi14:08:033:17:597:587:47
9:06
#12015
25.2M
25.20 mi14:11:293:21:258:003:26
9:57
#12118
Finish
26.22 mi14:20:373:30:338:029:08
8:58
#12423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi8276112111219708(Top 36%)1714(Top 15%)1714(Top 142%)
10K6.21 mi3.10 mi8588-3121256-1351256-1359004(Top 34%)1414(Top 12%)1414(Top 117%)
15K9.32 mi3.11 mi8918-3301398-1421398-1429708(Top 36%)1714(Top 15%)1714(Top 142%)
20K12.43 mi3.11 mi9212-2941520-1221520-12210322(Top 39%)2064(Top 18%)2064(Top 171%)
Half13.11 mi0.68 mi9263-511547-271547-2710330(Top 39%)2063(Top 18%)2063(Top 171%)
25K15.53 mi2.42 mi9589-3261684-1371684-13711372(Top 43%)2703(Top 24%)2703(Top 224%)
30K18.64 mi3.11 mi10290-7012049-3652049-36513476(Top 51%)4007(Top 35%)4007(Top 332%)
20M20.00 mi1.36 mi10568-2782208-1592208-15914004(Top 53%)4404(Top 39%)4404(Top 365%)
21M21.00 mi1.00 mi10928-3602426-2182426-21816205(Top 61%)5733(Top 50%)5733(Top 475%)
35K21.75 mi0.75 mi11070-1422503-772503-7714437(Top 54%)4789(Top 42%)4789(Top 397%)
23M23.00 mi1.25 mi11494-4242765-2622765-26216908(Top 64%)6234(Top 55%)6234(Top 516%)
24M24.00 mi1.00 mi11791-2972946-1812946-18116685(Top 63%)6179(Top 54%)6179(Top 512%)
40K24.85 mi0.85 mi12015-2243110-1643110-16416647(Top 63%)6200(Top 54%)6200(Top 514%)
25.2M25.20 mi0.35 mi12118-1033174-643174-6417187(Top 65%)6513(Top 57%)6513(Top 540%)
Finish26.22 mi1.02 mi12423-3053360-1863360-18617794(Top 67%)6798(Top 60%)6798(Top 563%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9708

Females

1714

F50-54

1714

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9004

Females

1414

F50-54

1414

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9708

Females

1714

F50-54

1714

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10322

Females

2064

F50-54

2064

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10330

Females

2063

F50-54

2063

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11372

Females

2703

F50-54

2703

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13476

Females

4007

F50-54

4007

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14004

Females

4404

F50-54

4404

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

16205

Females

5733

F50-54

5733

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14437

Females

4789

F50-54

4789

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

16908

Females

6234

F50-54

6234

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16685

Females

6179

F50-54

6179

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16647

Females

6200

F50-54

6200

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17187

Females

6513

F50-54

6513

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17794

Females

6798

F50-54

6798

Passing Analysis

Category:
Athletes Passed
476*
Passed By
4622
Net Change
-4147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8276
5K → 10K125437-312#8276#8588
10K → 15K56386-330#8588#8918
15K → 20K52346-294#8918#9212
20K → Half1566-51#9212#9263
Half → 25K50376-326#9263#9589
25K → 30K39739-701#9589#10290
30K → 20M26*304-278#10290#10568
20M → 21M13373-360#10568#10928
21M → 35K19161-142#10928#11070
35K → 23M22446-424#11070#11494
23M → 24M13310-297#11494#11791
24M → 40K24248-224#11791#12015
40K → 25.2M7110-103#12015#12118
25.2M → Finish15320-305#12118#12423
TOTALS476*4622-4147

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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