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BOSTON MARATHON 2023

Lucy Brash

Bib: 3203•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Female)
#0 / 11423
Top 0.7%
Division (F18-39)
#0 / 4884
Top 1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #2795
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
40:25
Rank: #2532 (+263)
5K → 10K
19:57 | 6:25/mi
15K· 9.32 mi
1:00:24
Rank: #2442 (+90)
10K → 15K
19:59 | 6:26/mi
20K· 12.43 mi
1:20:33
Rank: #2351 (+91)
15K → 20K
20:09 | 6:29/mi
Half· 13.11 mi
1:24:54
Rank: #2341 (+10)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:40:30
Rank: #2251 (+90)
Half → 25K
15:36 | 6:26/mi
30K· 18.64 mi
2:01:00
Rank: #2184 (+67)
25K → 30K
20:30 | 6:36/mi
20M
2:10:03
Rank: #2161 (+23)
30K → 20M
9:03 | 6:40/mi
21M
2:17:06
Rank: #2150 (+11)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:21:50
Rank: #2123 (+27)
21M → 35K
4:44 | 6:20/mi
23M
2:30:10
Rank: #2076 (+47)
35K → 23M
8:20 | 6:39/mi
24M
2:36:41
Rank: #2064 (+12)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:42:28
Rank: #2057 (+7)
24M → 40K
5:47 | 6:46/mi
25.2M
2:45:01
Rank: #2068 (-11)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:51:52
Rank: #2087 (-19)
25.2M → Finish
6:51 | 6:43/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:54
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:26:58
Pace6:38 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5820:286:3520:28
6:35
-
10K
6.21 mi10:41:5540:256:3019:57
6:25
-0:10
15K
9.32 mi11:01:541:00:246:2919:59
6:26
+0:01
20K
12.43 mi11:22:031:20:336:2920:09
6:29
+0:03
Half
13.11 mi11:26:241:24:546:294:21
6:23
-0:06
25K
15.53 mi11:42:001:40:306:2815:36
6:26
+0:03
30K
18.64 mi12:02:302:01:006:2920:30
6:36
+0:10
20M
20.00 mi12:11:332:10:036:309:03
6:40
+0:04
21M
21.00 mi12:18:362:17:066:327:03
7:03
+0:23
35K
21.75 mi12:23:202:21:506:314:44
6:20
-0:43
23M
23.00 mi12:31:402:30:106:328:20
6:39
+0:19
24M
24.00 mi12:38:112:36:416:326:31
6:31
-0:08
40K
24.85 mi12:43:582:42:286:325:47
6:46
+0:15
25.2M
25.20 mi12:46:312:45:016:332:33
7:24
+0:38
Finish
26.22 mi12:53:222:51:526:346:51
6:43
-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

6:20 /mi

Average Pace

6:34 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:42:16

94% of race

Time at Steady Pace

9:36

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:5820:286:3520:28
6:35
#2795
10K
6.21 mi10:41:5540:256:3019:57
6:25
#2532
15K
9.32 mi11:01:541:00:246:2919:59
6:26
#2442
20K
12.43 mi11:22:031:20:336:2920:09
6:29
#2351
Half
13.11 mi11:26:241:24:546:294:21
6:23
#2341
25K
15.53 mi11:42:001:40:306:2815:36
6:26
#2251
30K
18.64 mi12:02:302:01:006:2920:30
6:36
#2184
20M
20.00 mi12:11:332:10:036:309:03
6:40
#2161
21M
21.00 mi12:18:362:17:066:327:03
7:03
#2150
35K
21.75 mi12:23:202:21:506:314:44
6:20
#2123
23M
23.00 mi12:31:402:30:106:328:20
6:39
#2076
24M
24.00 mi12:38:112:36:416:326:31
6:31
#2064
40K
24.85 mi12:43:582:42:286:325:47
6:46
#2057
25.2M
25.20 mi12:46:312:45:016:332:33
7:24
#2068
Finish
26.22 mi12:53:222:51:526:346:51
6:43
#2087
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27951331332283(Top 9%)90(Top 0.8%)90(Top 2%)
10K6.21 mi3.10 mi2532+263116+17116+172354(Top 9%)98(Top 0.9%)98(Top 2%)
15K9.32 mi3.11 mi2442+90105+11105+112283(Top 9%)90(Top 0.8%)90(Top 2%)
20K12.43 mi3.11 mi2351+9195+1095+102214(Top 8%)88(Top 0.8%)88(Top 2%)
Half13.11 mi0.68 mi2341+1094+194+12165(Top 8%)86(Top 0.8%)86(Top 2%)
25K15.53 mi2.42 mi2251+9092+292+21894(Top 7%)77(Top 0.7%)77(Top 2%)
30K18.64 mi3.11 mi2184+6787+587+51952(Top 7%)85(Top 0.7%)85(Top 2%)
20M20.00 mi1.36 mi2161+2388-188-12128(Top 8%)98(Top 0.9%)98(Top 2%)
21M21.00 mi1.00 mi2150+1189-189-12416(Top 9%)129(Top 1%)129(Top 3%)
35K21.75 mi0.75 mi2123+2786+386+31699(Top 6%)84(Top 0.7%)84(Top 2%)
23M23.00 mi1.25 mi2076+4784+284+22015(Top 8%)106(Top 0.9%)106(Top 2%)
24M24.00 mi1.00 mi2064+1283+183+12196(Top 8%)133(Top 1%)133(Top 3%)
40K24.85 mi0.85 mi2057+783832691(Top 10%)201(Top 2%)201(Top 4%)
25.2M25.20 mi0.35 mi2068-1184-184-13453(Top 13%)316(Top 3%)316(Top 6%)
Finish26.22 mi1.02 mi2087-1985-185-13661(Top 14%)385(Top 3%)385(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2283

Females

90

F18-39

90

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2354

Females

98

F18-39

98

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2283

Females

90

F18-39

90

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2214

Females

88

F18-39

88

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2165

Females

86

F18-39

86

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1894

Females

77

F18-39

77

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1952

Females

85

F18-39

85

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2128

Females

98

F18-39

98

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2416

Females

129

F18-39

129

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1699

Females

84

F18-39

84

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2015

Females

106

F18-39

106

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2196

Females

133

F18-39

133

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2691

Females

201

F18-39

201

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3453

Females

316

F18-39

316

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3661

Females

385

F18-39

385

Passing Analysis

Category:
Athletes Passed
1069
Passed By
361
Net Change
+708
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2795
5K → 10K32562+263#2795#2532
10K → 15K12535+90#2532#2442
15K → 20K10918+91#2442#2351
20K → Half155+10#2351#2341
Half → 25K10616+90#2341#2251
25K → 30K9932+67#2251#2184
30K → 20M4522+23#2184#2161
20M → 21M4231+11#2161#2150
21M → 35K336+27#2150#2123
35K → 23M6518+47#2123#2076
23M → 24M3119+12#2076#2064
24M → 40K3225+7#2064#2057
40K → 25.2M718-11#2057#2068
25.2M → Finish3554-19#2068#2087
TOTALS1069361+708
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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