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BOSTON MARATHON 2023

Teresa Webb

Bib: 14395•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 26%
Masters (Masters Women)
#0 / 6539
Top 13%
Division (F45-49)
#0 / 1817
Top 13%
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
7:43/mi
23:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:50
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:35:48
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:40:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:59:50
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:24:09
↑ 181↓ 1480.2%
20M
7:54/mi
2:34:53
↑ 64↓ 500.2%
21M
8:34/mi
2:43:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:49:22
↑ 17↓ 861.7%
23M
8:14/mi
2:59:41
↑ 23↓ 630.6%
24M
8:57/mi
3:08:38
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:16:17
↓ 200.3%
25.2M
9:34/mi
3:19:35
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:28:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:59
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:47:02
Pace8:10 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1023:577:4323:57
7:43
-
10K
6.21 mi11:17:0547:527:4223:55
7:42
-0:01
15K
9.32 mi11:41:031:11:507:4223:58
7:43
+0:01
20K
12.43 mi12:05:011:35:487:4323:58
7:43
0:00
Half
13.11 mi12:10:121:40:597:425:11
7:36
-0:07
25K
15.53 mi12:29:031:59:507:4318:51
7:46
+0:10
30K
18.64 mi12:53:222:24:097:4424:19
7:50
+0:04
20M
20.00 mi13:04:062:34:537:4510:44
7:54
+0:04
21M
21.00 mi13:12:402:43:277:478:34
8:34
+0:40
35K
21.75 mi13:18:352:49:227:475:55
7:55
-0:39
23M
23.00 mi13:28:542:59:417:4910:19
8:14
+0:19
24M
24.00 mi13:37:513:08:387:528:57
8:57
+0:43
40K
24.85 mi13:45:303:16:177:547:39
8:57
0:00
25.2M
25.20 mi13:48:483:19:357:553:18
9:34
+0:37
Finish
26.22 mi13:57:143:28:017:568:26
8:17
-1:17

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

7:36 /mi

Average Pace

7:56 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:11

2% of race

Time at Steady Pace

2:35:37

75% of race

Time at Slower Pace

47:13

23% of race

Average Pace: 7:56 /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 mi10:53:1023:577:4323:57
7:43
#11537
10K
6.21 mi11:17:0547:527:4223:55
7:42
#11851
15K
9.32 mi11:41:031:11:507:4223:58
7:43
#11853
20K
12.43 mi12:05:011:35:487:4323:58
7:43
#11605
Half
13.11 mi12:10:121:40:597:425:11
7:36
#11564
25K
15.53 mi12:29:031:59:507:4318:51
7:46
#11417
30K
18.64 mi12:53:222:24:097:4424:19
7:50
#11027
20M
20.00 mi13:04:062:34:537:4510:44
7:54
#10885
21M
21.00 mi13:12:402:43:277:478:34
8:34
#10877
35K
21.75 mi13:18:352:49:227:475:55
7:55
#10882
23M
23.00 mi13:28:542:59:417:4910:19
8:14
#10897
24M
24.00 mi13:37:513:08:387:528:57
8:57
#11239
40K
24.85 mi13:45:303:16:177:547:39
8:57
#11461
25.2M
25.20 mi13:48:483:19:357:553:18
9:34
#11534
Finish
26.22 mi13:57:143:28:017:568:26
8:17
#11619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi115372610261011977(Top 45%)2888(Top 25%)2888(Top 159%)
10K6.21 mi3.10 mi11851-3142791-1812791-18112233(Top 46%)3002(Top 26%)3002(Top 165%)
15K9.32 mi3.11 mi11853-22810-192810-1911977(Top 45%)2888(Top 25%)2888(Top 159%)
20K12.43 mi3.11 mi11605+2482685+1252685+12511050(Top 42%)2432(Top 21%)2432(Top 134%)
Half13.11 mi0.68 mi11564+412662+232662+2311081(Top 42%)2423(Top 21%)2423(Top 133%)
25K15.53 mi2.42 mi11417+1472602+602602+6010913(Top 41%)2442(Top 21%)2442(Top 134%)
30K18.64 mi3.11 mi11027+3902417+1852417+1859589(Top 36%)1967(Top 17%)1967(Top 108%)
20M20.00 mi1.36 mi10885+1422373+442373+449590(Top 36%)2066(Top 18%)2066(Top 114%)
21M21.00 mi1.00 mi10877+82401-282401-2810899(Top 41%)2815(Top 25%)2815(Top 155%)
35K21.75 mi0.75 mi10882-52415-142415-1411492(Top 43%)3132(Top 27%)3132(Top 172%)
23M23.00 mi1.25 mi10897-152447-322447-3211482(Top 43%)3244(Top 28%)3244(Top 179%)
24M24.00 mi1.00 mi11239-3422647-2002647-20016995(Top 64%)6345(Top 56%)6345(Top 349%)
40K24.85 mi0.85 mi11461-2222792-1452792-14515865(Top 60%)5763(Top 50%)5763(Top 317%)
25.2M25.20 mi0.35 mi11534-732839-472839-4715504(Top 58%)5565(Top 49%)5565(Top 306%)
Finish26.22 mi1.02 mi11619-852918-792918-7913950(Top 52%)4701(Top 41%)4701(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11977

Females

2888

F45-49

2888

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12233

Females

3002

F45-49

3002

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11977

Females

2888

F45-49

2888

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11050

Females

2432

F45-49

2432

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11081

Females

2423

F45-49

2423

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10913

Females

2442

F45-49

2442

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9589

Females

1967

F45-49

1967

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9590

Females

2066

F45-49

2066

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10899

Females

2815

F45-49

2815

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11492

Females

3132

F45-49

3132

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11482

Females

3244

F45-49

3244

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

16995

Females

6345

F45-49

6345

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15865

Females

5763

F45-49

5763

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15504

Females

5565

F45-49

5565

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13950

Females

4701

F45-49

4701

Passing Analysis

Category:
Athletes Passed
1819*
Passed By
1901
Net Change
-82
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11537
5K → 10K177491-314#11537#11851
10K → 15K189191-2#11851#11853
15K → 20K30658+248#11853#11605
20K → Half5918+41#11605#11564
Half → 25K19144+147#11564#11417
25K → 30K41929+390#11417#11027
30K → 20M171*29+142#11027#10885
20M → 21M7769+8#10885#10877
21M → 35K4651-5#10877#10882
35K → 23M8196-15#10882#10897
23M → 24M19361-342#10897#11239
24M → 40K19241-222#11239#11461
40K → 25.2M1588-73#11461#11534
25.2M → Finish50135-85#11534#11619
TOTALS1819*1901-82

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

📊

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