Boston Marathon logo
BOSTON MARATHON 2023

Alicia Brumbach

Bib: 20171•F

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 50%
Masters (Masters Women)
#0 / 6539
Top 39%
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
25:58
Rank: #16581
Start → 5K
25:58 | 8:21/mi
10K· 6.21 mi
51:38
Rank: #16581
5K → 10K
25:40 | 8:16/mi
15K· 9.32 mi
1:17:23
Rank: #16535 (+46)
10K → 15K
25:45 | 8:17/mi
20K· 12.43 mi
1:43:28
Rank: #16471 (+64)
15K → 20K
26:05 | 8:24/mi
Half· 13.11 mi
1:49:04
Rank: #16435 (+36)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:09:40
Rank: #16387 (+48)
Half → 25K
20:36 | 8:30/mi
30K· 18.64 mi
2:36:59
Rank: #16301 (+86)
25K → 30K
27:19 | 8:48/mi
20M
2:49:00
Rank: #16216 (+85)
30K → 20M
12:01 | 8:51/mi
21M
2:58:19
Rank: #16125 (+91)
20M → 21M
9:19 | 9:19/mi
35K· 21.75 mi
3:04:59
Rank: #16182 (-57)
21M → 35K
6:40 | 8:55/mi
23M
3:16:29
Rank: #16219 (-37)
35K → 23M
11:30 | 9:11/mi
24M
3:25:30
Rank: #16256 (-37)
23M → 24M
9:01 | 9:01/mi
40K· 24.85 mi
3:33:21
Rank: #16279 (-23)
24M → 40K
7:51 | 9:11/mi
25.2M
3:36:41
Rank: #16273 (+6)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:45:48
Rank: #16329 (-56)
25.2M → Finish
9:07 | 8:57/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:04
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:56:44
Pace8:54 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0125:588:2125:58
8:21
-
10K
6.21 mi11:44:4151:388:1925:40
8:16
-0:05
15K
9.32 mi12:10:261:17:238:1825:45
8:17
+0:01
20K
12.43 mi12:36:311:43:288:2026:05
8:24
+0:07
Half
13.11 mi12:42:071:49:048:195:36
8:12
-0:12
25K
15.53 mi13:02:432:09:408:2120:36
8:30
+0:18
30K
18.64 mi13:30:022:36:598:2527:19
8:48
+0:18
20M
20.00 mi13:42:032:49:008:2712:01
8:51
+0:03
21M
21.00 mi13:51:222:58:198:299:19
9:19
+0:28
35K
21.75 mi13:58:023:04:598:306:40
8:55
-0:24
23M
23.00 mi14:09:323:16:298:3311:30
9:11
+0:16
24M
24.00 mi14:18:333:25:308:349:01
9:01
-0:10
40K
24.85 mi14:26:243:33:218:357:51
9:11
+0:10
25.2M
25.20 mi14:29:443:36:418:363:20
9:40
+0:29
Finish
26.22 mi14:38:513:45:488:379:07
8:57
-0:43

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

8:12 /mi

Average Pace

8:37 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:48

86% of race

Time at Steady Pace

32:00

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:19:0125:588:2125:58
8:21
#16581
10K
6.21 mi11:44:4151:388:1925:40
8:16
#16581
15K
9.32 mi12:10:261:17:238:1825:45
8:17
#16535
20K
12.43 mi12:36:311:43:288:2026:05
8:24
#16471
Half
13.11 mi12:42:071:49:048:195:36
8:12
#16435
25K
15.53 mi13:02:432:09:408:2120:36
8:30
#16387
30K
18.64 mi13:30:022:36:598:2527:19
8:48
#16301
20M
20.00 mi13:42:032:49:008:2712:01
8:51
#16216
21M
21.00 mi13:51:222:58:198:299:19
9:19
#16125
35K
21.75 mi13:58:023:04:598:306:40
8:55
#16182
23M
23.00 mi14:09:323:16:298:3311:30
9:11
#16219
24M
24.00 mi14:18:333:25:308:349:01
9:01
#16256
40K
24.85 mi14:26:243:33:218:357:51
9:11
#16279
25.2M
25.20 mi14:29:443:36:418:363:20
9:40
#16273
Finish
26.22 mi14:38:513:45:488:379:07
8:57
#16329
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi165815656565616478(Top 62%)5582(Top 49%)5582(Top 297%)
10K6.21 mi3.10 mi165815628+285628+2816671(Top 63%)5678(Top 50%)5678(Top 302%)
15K9.32 mi3.11 mi16535+465620+85620+816478(Top 62%)5582(Top 49%)5582(Top 297%)
20K12.43 mi3.11 mi16471+645590+305590+3016228(Top 61%)5488(Top 48%)5488(Top 292%)
Half13.11 mi0.68 mi16435+365577+135577+1315929(Top 60%)5261(Top 46%)5261(Top 280%)
25K15.53 mi2.42 mi16387+485567+105567+1016187(Top 61%)5553(Top 49%)5553(Top 296%)
30K18.64 mi3.11 mi16301+865571-45571-416016(Top 60%)5509(Top 48%)5509(Top 293%)
20M20.00 mi1.36 mi16216+855527+445527+4415688(Top 59%)5387(Top 47%)5387(Top 287%)
21M21.00 mi1.00 mi16125+915490+375490+3715111(Top 57%)5128(Top 45%)5128(Top 273%)
35K21.75 mi0.75 mi16182-575544-545544-5417507(Top 66%)6549(Top 57%)6549(Top 349%)
23M23.00 mi1.25 mi16219-375568-245568-2416992(Top 64%)6284(Top 55%)6284(Top 335%)
24M24.00 mi1.00 mi16256-375609-415609-4117320(Top 65%)6526(Top 57%)6526(Top 347%)
40K24.85 mi0.85 mi16279-235642-335642-3317032(Top 64%)6417(Top 56%)6417(Top 342%)
25.2M25.20 mi0.35 mi16273+65644-25644-216000(Top 60%)5864(Top 51%)5864(Top 312%)
Finish26.22 mi1.02 mi16329-565677-335677-3317717(Top 67%)6761(Top 59%)6761(Top 360%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16478

Females

5582

F40-44

5582

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

16671

Females

5678

F40-44

5678

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16478

Females

5582

F40-44

5582

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16228

Females

5488

F40-44

5488

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

15929

Females

5261

F40-44

5261

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16187

Females

5553

F40-44

5553

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

16016

Females

5509

F40-44

5509

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15688

Females

5387

F40-44

5387

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15111

Females

5128

F40-44

5128

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17507

Females

6549

F40-44

6549

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

16992

Females

6284

F40-44

6284

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17320

Females

6526

F40-44

6526

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17032

Females

6417

F40-44

6417

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16000

Females

5864

F40-44

5864

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17717

Females

6761

F40-44

6761

Passing Analysis

Category:
Athletes Passed
1696
Passed By
1444
Net Change
+252
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16581
5K → 10K3053050#16581#16581
10K → 15K222176+46#16581#16535
15K → 20K194130+64#16535#16471
20K → Half5014+36#16471#16435
Half → 25K161113+48#16435#16387
25K → 30K218132+86#16387#16301
30K → 20M12439+85#16301#16216
20M → 21M12837+91#16216#16125
21M → 35K3592-57#16125#16182
35K → 23M71108-37#16182#16219
23M → 24M5895-37#16219#16256
24M → 40K5578-23#16256#16279
40K → 25.2M3327+6#16279#16273
25.2M → Finish4298-56#16273#16329
TOTALS16961444+252
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing