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BOSTON MARATHON 2023

Lydia Brough

Bib: 14514•F

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:49
Rank: #11158
Start → 5K
23:49 | 7:40/mi
10K· 6.21 mi
47:35
Rank: #11413 (-255)
5K → 10K
23:46 | 7:39/mi
15K· 9.32 mi
1:11:17
Rank: #11342 (+71)
10K → 15K
23:42 | 7:38/mi
20K· 12.43 mi
1:34:41
Rank: #10861 (+481)
15K → 20K
23:24 | 7:32/mi
Half· 13.11 mi
1:39:42
Rank: #10760 (+101)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:58:04
Rank: #10485 (+275)
Half → 25K
18:22 | 7:35/mi
30K· 18.64 mi
2:22:04
Rank: #10141 (+344)
25K → 30K
24:00 | 7:43/mi
20M
2:32:21
Rank: #9875 (+266)
30K → 20M
10:17 | 7:34/mi
21M
2:40:19
Rank: #9699 (+176)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:45:49
Rank: #9603 (+96)
21M → 35K
5:30 | 7:21/mi
23M
2:55:17
Rank: #9380 (+223)
35K → 23M
9:28 | 7:34/mi
24M
3:02:42
Rank: #9243 (+137)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
3:09:12
Rank: #9147 (+96)
24M → 40K
6:30 | 7:36/mi
25.2M
3:11:58
Rank: #9113 (+34)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:19:26
Rank: #9029 (+84)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:42
Pace7:36 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:44
Pace7:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4023:497:4023:49
7:40
-
10K
6.21 mi11:42:2647:357:3923:46
7:39
-0:01
15K
9.32 mi12:06:081:11:177:3923:42
7:38
-0:01
20K
12.43 mi12:29:321:34:417:3723:24
7:32
-0:06
Half
13.11 mi12:34:331:39:427:365:01
7:21
-0:11
25K
15.53 mi12:52:551:58:047:3618:22
7:35
+0:14
30K
18.64 mi13:16:552:22:047:3724:00
7:43
+0:08
20M
20.00 mi13:27:122:32:217:3710:17
7:34
-0:09
21M
21.00 mi13:35:102:40:197:387:58
7:58
+0:24
35K
21.75 mi13:40:402:45:497:375:30
7:21
-0:37
23M
23.00 mi13:50:082:55:177:379:28
7:34
+0:13
24M
24.00 mi13:57:333:02:427:377:25
7:25
-0:09
40K
24.85 mi14:04:033:09:127:376:30
7:36
+0:11
25.2M
25.20 mi14:06:493:11:587:372:46
8:01
+0:25
Finish
26.22 mi14:14:173:19:267:377:28
7:20
-0:41

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

7:20 /mi

Average Pace

7:37 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:42

83% of race

Time at Steady Pace

34:44

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi11:18:4023:497:4023:49
7:40
#11158
10K
6.21 mi11:42:2647:357:3923:46
7:39
#11413
15K
9.32 mi12:06:081:11:177:3923:42
7:38
#11342
20K
12.43 mi12:29:321:34:417:3723:24
7:32
#10861
Half
13.11 mi12:34:331:39:427:365:01
7:21
#10760
25K
15.53 mi12:52:551:58:047:3618:22
7:35
#10485
30K
18.64 mi13:16:552:22:047:3724:00
7:43
#10141
20M
20.00 mi13:27:122:32:217:3710:17
7:34
#9875
21M
21.00 mi13:35:102:40:197:387:58
7:58
#9699
35K
21.75 mi13:40:402:45:497:375:30
7:21
#9603
23M
23.00 mi13:50:082:55:177:379:28
7:34
#9380
24M
24.00 mi13:57:333:02:427:377:25
7:25
#9243
40K
24.85 mi14:04:033:09:127:376:30
7:36
#9147
25.2M
25.20 mi14:06:493:11:587:372:46
8:01
#9113
Finish
26.22 mi14:14:173:19:267:377:28
7:20
#9029
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111582405240511245(Top 42%)2481(Top 22%)2481(Top 51%)
10K6.21 mi3.10 mi11413-2552553-1482553-14811788(Top 44%)2747(Top 24%)2747(Top 56%)
15K9.32 mi3.11 mi11342+712511+422511+4211245(Top 42%)2481(Top 22%)2481(Top 51%)
20K12.43 mi3.11 mi10861+4812271+2402271+2409578(Top 36%)1723(Top 15%)1723(Top 35%)
Half13.11 mi0.68 mi10760+1012221+502221+509090(Top 34%)1514(Top 13%)1514(Top 31%)
25K15.53 mi2.42 mi10485+2752089+1322089+1329360(Top 35%)1709(Top 15%)1709(Top 35%)
30K18.64 mi3.11 mi10141+3441960+1291960+1298838(Top 33%)1649(Top 14%)1649(Top 34%)
20M20.00 mi1.36 mi9875+2661865+951865+957309(Top 27%)1147(Top 10%)1147(Top 23%)
21M21.00 mi1.00 mi9699+1761799+661799+667181(Top 27%)1206(Top 11%)1206(Top 25%)
35K21.75 mi0.75 mi9603+961784+151784+157534(Top 28%)1326(Top 12%)1326(Top 27%)
23M23.00 mi1.25 mi9380+2231723+611723+616835(Top 26%)1118(Top 10%)1118(Top 23%)
24M24.00 mi1.00 mi9243+1371694+291694+297201(Top 27%)1371(Top 12%)1371(Top 28%)
40K24.85 mi0.85 mi9147+961675+191675+197379(Top 28%)1518(Top 13%)1518(Top 31%)
25.2M25.20 mi0.35 mi9113+341670+51670+56741(Top 25%)1327(Top 12%)1327(Top 27%)
Finish26.22 mi1.02 mi9029+841661+91661+97335(Top 28%)1559(Top 14%)1559(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11245

Females

2481

F18-39

2481

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11788

Females

2747

F18-39

2747

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11245

Females

2481

F18-39

2481

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9578

Females

1723

F18-39

1723

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9090

Females

1514

F18-39

1514

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9360

Females

1709

F18-39

1709

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8838

Females

1649

F18-39

1649

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7309

Females

1147

F18-39

1147

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7181

Females

1206

F18-39

1206

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7534

Females

1326

F18-39

1326

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6835

Females

1118

F18-39

1118

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7201

Females

1371

F18-39

1371

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7379

Females

1518

F18-39

1518

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6741

Females

1327

F18-39

1327

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7335

Females

1559

F18-39

1559

Passing Analysis

Category:
Athletes Passed
2875*
Passed By
746
Net Change
+2129
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11158
5K → 10K197452-255#11158#11413
10K → 15K220149+71#11413#11342
15K → 20K49312+481#11342#10861
20K → Half1054+101#10861#10760
Half → 25K28914+275#10760#10485
25K → 30K371*27+344#10485#10141
30K → 20M270*4+266#10141#9875
20M → 21M1859+176#9875#9699
21M → 35K1015+96#9699#9603
35K → 23M2307+223#9603#9380
23M → 24M14710+137#9380#9243
24M → 40K10913+96#9243#9147
40K → 25.2M439+34#9147#9113
25.2M → Finish11531+84#9113#9029
TOTALS2875*746+2129

* 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