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BOSTON MARATHON 2023

Jen Brady

Bib: 17954•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 33%
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
23:26
Rank: #10024
Start → 5K
23:26 | 7:33/mi
10K· 6.21 mi
46:56
Rank: #10510 (-486)
5K → 10K
23:30 | 7:34/mi
15K· 9.32 mi
1:10:37
Rank: #10734 (-224)
10K → 15K
23:41 | 7:37/mi
20K· 12.43 mi
1:34:28
Rank: #10723 (+11)
15K → 20K
23:51 | 7:41/mi
Half· 13.11 mi
1:39:38
Rank: #10727 (-4)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:58:17
Rank: #10608 (+119)
Half → 25K
18:39 | 7:42/mi
30K· 18.64 mi
2:22:40
Rank: #10386 (+222)
25K → 30K
24:23 | 7:51/mi
20M
2:33:22
Rank: #10308 (+78)
30K → 20M
10:42 | 7:52/mi
21M
2:41:47
Rank: #10255 (+53)
20M → 21M
8:25 | 8:25/mi
35K· 21.75 mi
2:47:31
Rank: #10223 (+32)
21M → 35K
5:44 | 7:40/mi
23M
2:57:36
Rank: #10193 (+30)
35K → 23M
10:05 | 8:03/mi
24M
3:05:21
Rank: #10130 (+63)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:12:04
Rank: #10056 (+74)
24M → 40K
6:43 | 7:51/mi
25.2M
3:15:02
Rank: #10044 (+12)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:23:14
Rank: #10120 (-76)
25.2M → Finish
8:12 | 8:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:38
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:43:36
Pace7:54 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0323:267:3323:26
7:33
-
10K
6.21 mi11:37:3346:567:3323:30
7:34
+0:01
15K
9.32 mi12:01:141:10:377:3523:41
7:37
+0:03
20K
12.43 mi12:25:051:34:287:3623:51
7:41
+0:04
Half
13.11 mi12:30:151:39:387:365:10
7:34
-0:07
25K
15.53 mi12:48:541:58:177:3718:39
7:42
+0:08
30K
18.64 mi13:13:172:22:407:3924:23
7:51
+0:09
20M
20.00 mi13:23:592:33:227:4010:42
7:52
+0:01
21M
21.00 mi13:32:242:41:477:428:25
8:25
+0:33
35K
21.75 mi13:38:082:47:317:425:44
7:40
-0:45
23M
23.00 mi13:48:132:57:367:4310:05
8:03
+0:23
24M
24.00 mi13:55:583:05:217:437:45
7:45
-0:18
40K
24.85 mi14:02:413:12:047:446:43
7:51
+0:06
25.2M
25.20 mi14:05:393:15:027:442:58
8:36
+0:45
Finish
26.22 mi14:13:513:23:147:458:12
8:03
-0:33

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

7:33 /mi

Average Pace

7:45 /mi

Slowest Pace

8:36 /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

3:11:51

94% of race

Time at Steady Pace

11:23

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:14:0323:267:3323:26
7:33
#10024
10K
6.21 mi11:37:3346:567:3323:30
7:34
#10510
15K
9.32 mi12:01:141:10:377:3523:41
7:37
#10734
20K
12.43 mi12:25:051:34:287:3623:51
7:41
#10723
Half
13.11 mi12:30:151:39:387:365:10
7:34
#10727
25K
15.53 mi12:48:541:58:177:3718:39
7:42
#10608
30K
18.64 mi13:13:172:22:407:3924:23
7:51
#10386
20M
20.00 mi13:23:592:33:227:4010:42
7:52
#10308
21M
21.00 mi13:32:242:41:477:428:25
8:25
#10255
35K
21.75 mi13:38:082:47:317:425:44
7:40
#10223
23M
23.00 mi13:48:132:57:367:4310:05
8:03
#10193
24M
24.00 mi13:55:583:05:217:437:45
7:45
#10130
40K
24.85 mi14:02:413:12:047:446:43
7:51
#10056
25.2M
25.20 mi14:05:393:15:027:442:58
8:36
#10044
Finish
26.22 mi14:13:513:23:147:458:12
8:03
#10120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi100241873187311209(Top 42%)2464(Top 22%)2464(Top 50%)
10K6.21 mi3.10 mi10510-4862078-2052078-20511010(Top 41%)2314(Top 20%)2314(Top 47%)
15K9.32 mi3.11 mi10734-2242192-1142192-11411209(Top 42%)2464(Top 22%)2464(Top 50%)
20K12.43 mi3.11 mi10723+112200-82200-810737(Top 40%)2274(Top 20%)2274(Top 47%)
Half13.11 mi0.68 mi10727-42203-32203-310860(Top 41%)2289(Top 20%)2289(Top 47%)
25K15.53 mi2.42 mi10608+1192149+542149+5410247(Top 38%)2110(Top 18%)2110(Top 43%)
30K18.64 mi3.11 mi10386+2222095+542095+549742(Top 37%)2039(Top 18%)2039(Top 42%)
20M20.00 mi1.36 mi10308+782074+212074+219420(Top 35%)1988(Top 17%)1988(Top 41%)
21M21.00 mi1.00 mi10255+532072+22072+29981(Top 37%)2373(Top 21%)2373(Top 49%)
35K21.75 mi0.75 mi10223+322071+12071+19737(Top 37%)2241(Top 20%)2241(Top 46%)
23M23.00 mi1.25 mi10193+302095-242095-2410141(Top 38%)2568(Top 22%)2568(Top 53%)
24M24.00 mi1.00 mi10130+632091+42091+49448(Top 35%)2309(Top 20%)2309(Top 47%)
40K24.85 mi0.85 mi10056+742087+42087+49078(Top 34%)2210(Top 19%)2210(Top 45%)
25.2M25.20 mi0.35 mi10044+122097-102097-1010198(Top 38%)2778(Top 24%)2778(Top 57%)
Finish26.22 mi1.02 mi10120-762154-572154-5712447(Top 47%)3924(Top 34%)3924(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11209

Females

2464

F18-39

2464

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11010

Females

2314

F18-39

2314

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11209

Females

2464

F18-39

2464

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10737

Females

2274

F18-39

2274

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

10860

Females

2289

F18-39

2289

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10247

Females

2110

F18-39

2110

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9742

Females

2039

F18-39

2039

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9420

Females

1988

F18-39

1988

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9981

Females

2373

F18-39

2373

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9737

Females

2241

F18-39

2241

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10141

Females

2568

F18-39

2568

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9448

Females

2309

F18-39

2309

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9078

Females

2210

F18-39

2210

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10198

Females

2778

F18-39

2778

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12447

Females

3924

F18-39

3924

Passing Analysis

Category:
Athletes Passed
1553*
Passed By
1649
Net Change
-96
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10024
5K → 10K119605-486#10024#10510
10K → 15K109333-224#10510#10734
15K → 20K163152+11#10734#10723
20K → Half2731-4#10723#10727
Half → 25K18667+119#10727#10608
25K → 30K28664+222#10608#10386
30K → 20M111*33+78#10386#10308
20M → 21M11057+53#10308#10255
21M → 35K6331+32#10255#10223
35K → 23M9363+30#10223#10193
23M → 24M10037+63#10193#10130
24M → 40K10329+74#10130#10056
40K → 25.2M41*29+12#10056#10044
25.2M → Finish42118-76#10044#10120
TOTALS1553*1649-96

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

📊

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