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BOSTON MARATHON 2023

Tracey Henderson

Bib: 19968•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:15
Rank: #19308
Start → 5K
27:15 | 8:46/mi
10K· 6.21 mi
54:48
Rank: #19789 (-481)
5K → 10K
27:33 | 8:52/mi
15K· 9.32 mi
1:22:00
Rank: #19598 (+191)
10K → 15K
27:12 | 8:45/mi
20K· 12.43 mi
1:50:08
Rank: #19646 (-48)
15K → 20K
28:08 | 9:03/mi
Half· 13.11 mi
1:56:09
Rank: #19658 (-12)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:18:09
Rank: #19591 (+67)
Half → 25K
22:00 | 9:04/mi
30K· 18.64 mi
2:47:15
Rank: #19457 (+134)
25K → 30K
29:06 | 9:22/mi
20M
2:59:34
Rank: #19263 (+194)
30K → 20M
12:19 | 9:04/mi
21M
3:09:29
Rank: #19160 (+103)
20M → 21M
9:55 | 9:55/mi
35K· 21.75 mi
3:16:12
Rank: #19114 (+46)
21M → 35K
6:43 | 8:59/mi
23M
3:28:33
Rank: #19153 (-39)
35K → 23M
12:21 | 9:52/mi
24M
3:38:28
Rank: #19253 (-100)
23M → 24M
9:55 | 9:55/mi
40K· 24.85 mi
3:46:23
Rank: #19179 (+74)
24M → 40K
7:55 | 9:16/mi
25.2M
3:49:51
Rank: #19152 (+27)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:59:08
Rank: #19165 (-13)
25.2M → Finish
9:17 | 9:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:09
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:02:59
Pace9:23 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5727:158:4627:15
8:46
-
10K
6.21 mi11:46:3054:488:4927:33
8:52
+0:06
15K
9.32 mi12:13:421:22:008:4827:12
8:45
-0:07
20K
12.43 mi12:41:501:50:088:5228:08
9:03
+0:18
Half
13.11 mi12:47:511:56:098:526:01
8:49
-0:14
25K
15.53 mi13:09:512:18:098:5422:00
9:04
+0:15
30K
18.64 mi13:38:572:47:158:5829:06
9:22
+0:18
20M
20.00 mi13:51:162:59:348:5912:19
9:04
-0:18
21M
21.00 mi14:01:113:09:299:019:55
9:55
+0:51
35K
21.75 mi14:07:543:16:129:016:43
8:59
-0:56
23M
23.00 mi14:20:153:28:339:0412:21
9:52
+0:53
24M
24.00 mi14:30:103:38:289:069:55
9:55
+0:03
40K
24.85 mi14:38:053:46:239:067:55
9:16
-0:39
25.2M
25.20 mi14:41:333:49:519:073:28
10:03
+0:47
Finish
26.22 mi14:50:503:59:089:089:17
9:07
-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

8:45 /mi

Average Pace

9:08 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:29

85% of race

Time at Steady Pace

35:39

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:07 /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 mi11:18:5727:158:4627:15
8:46
#19308
10K
6.21 mi11:46:3054:488:4927:33
8:52
#19789
15K
9.32 mi12:13:421:22:008:4827:12
8:45
#19598
20K
12.43 mi12:41:501:50:088:5228:08
9:03
#19646
Half
13.11 mi12:47:511:56:098:526:01
8:49
#19658
25K
15.53 mi13:09:512:18:098:5422:00
9:04
#19591
30K
18.64 mi13:38:572:47:158:5829:06
9:22
#19457
20M
20.00 mi13:51:162:59:348:5912:19
9:04
#19263
21M
21.00 mi14:01:113:09:299:019:55
9:55
#19160
35K
21.75 mi14:07:543:16:129:016:43
8:59
#19114
23M
23.00 mi14:20:153:28:339:0412:21
9:52
#19153
24M
24.00 mi14:30:103:38:289:069:55
9:55
#19253
40K
24.85 mi14:38:053:46:239:067:55
9:16
#19179
25.2M
25.20 mi14:41:333:49:519:073:28
10:03
#19152
Finish
26.22 mi14:50:503:59:089:089:17
9:07
#19165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi193087393739319274(Top 72%)7256(Top 64%)7256(Top 386%)
10K6.21 mi3.10 mi19789-4817643-2507643-25020270(Top 76%)7851(Top 69%)7851(Top 418%)
15K9.32 mi3.11 mi19598+1917510+1337510+13319274(Top 72%)7256(Top 64%)7256(Top 386%)
20K12.43 mi3.11 mi19646-487510751019953(Top 75%)7650(Top 67%)7650(Top 407%)
Half13.11 mi0.68 mi19658-127516-67516-619619(Top 74%)7447(Top 65%)7447(Top 397%)
25K15.53 mi2.42 mi19591+677478+387478+3819312(Top 73%)7314(Top 64%)7314(Top 389%)
30K18.64 mi3.11 mi19457+1347403+757403+7518888(Top 71%)7137(Top 62%)7137(Top 380%)
20M20.00 mi1.36 mi19263+1947310+937310+9316890(Top 63%)6094(Top 53%)6094(Top 324%)
21M21.00 mi1.00 mi19160+1037257+537257+5317740(Top 67%)6609(Top 58%)6609(Top 352%)
35K21.75 mi0.75 mi19114+467239+187239+1817855(Top 67%)6757(Top 59%)6757(Top 360%)
23M23.00 mi1.25 mi19153-397273-347273-3419609(Top 74%)7744(Top 68%)7744(Top 412%)
24M24.00 mi1.00 mi19253-1007337-647337-6420556(Top 77%)8296(Top 73%)8296(Top 442%)
40K24.85 mi0.85 mi19179+747301+367301+3617377(Top 65%)6620(Top 58%)6620(Top 353%)
25.2M25.20 mi0.35 mi19152+277289+127289+1217652(Top 66%)6779(Top 59%)6779(Top 361%)
Finish26.22 mi1.02 mi19165-137302-137302-1318531(Top 70%)7189(Top 63%)7189(Top 383%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19274

Females

7256

F40-44

7256

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20270

Females

7851

F40-44

7851

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19274

Females

7256

F40-44

7256

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19953

Females

7650

F40-44

7650

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

19619

Females

7447

F40-44

7447

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19312

Females

7314

F40-44

7314

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

18888

Females

7137

F40-44

7137

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16890

Females

6094

F40-44

6094

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17740

Females

6609

F40-44

6609

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17855

Females

6757

F40-44

6757

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19609

Females

7744

F40-44

7744

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20556

Females

8296

F40-44

8296

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17377

Females

6620

F40-44

6620

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17652

Females

6779

F40-44

6779

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

18531

Females

7189

F40-44

7189

Passing Analysis

Category:
Athletes Passed
1648
Passed By
1505
Net Change
+143
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19308
5K → 10K142623-481#19308#19789
10K → 15K295104+191#19789#19598
15K → 20K144192-48#19598#19646
20K → Half3042-12#19646#19658
Half → 25K14578+67#19658#19591
25K → 30K22894+134#19591#19457
30K → 20M20612+194#19457#19263
20M → 21M13229+103#19263#19160
21M → 35K6216+46#19160#19114
35K → 23M63102-39#19114#19153
23M → 24M31131-100#19153#19253
24M → 40K9218+74#19253#19179
40K → 25.2M369+27#19179#19152
25.2M → Finish4255-13#19152#19165
TOTALS16481505+143
📊

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