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BOSTON MARATHON 2023

Amy Brown

Bib: 10921•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Female)
#0 / 11423
Top 4%
Masters (Masters Women)
#0 / 6539
Top 1%
Division (F40-44)
#0 / 1878
Top 3%
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
7:07/mi
22:07
↑ 97↓ 3451.5%
10K· 6.21 mi
6:47/mi
43:12
↑ 79↓ 1380.4%
15K· 9.32 mi
6:48/mi
1:04:20
↑ 67↓ 78
20K· 12.43 mi
6:51/mi
1:25:38
↑ 106↓ 860.1%
Half· 13.11 mi
6:42/mi
1:30:12
↑ 19↓ 370.5%
25K· 15.53 mi
6:59/mi
1:47:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:11/mi
2:09:25
↑ 181↓ 1480.2%
20M
7:10/mi
2:19:10
↑ 64↓ 500.2%
21M
7:53/mi
2:27:03
↑ 106↓ 241.6%
35K· 21.75 mi
6:49/mi
2:32:09
↑ 17↓ 861.7%
23M
7:21/mi
2:41:21
↑ 23↓ 630.6%
24M
7:09/mi
2:48:30
↓ 821.3%
40K· 24.85 mi
7:17/mi
2:54:44
↓ 200.3%
25.2M
7:38/mi
2:57:22
↑ 13↓ 160.2%
Finish· 26.22 mi
6:52/mi
3:04:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:12
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:34:10
Pace7:11 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4922:077:0722:07
7:07
-
10K
6.21 mi11:09:5443:126:5721:05
6:47
-0:20
15K
9.32 mi11:31:021:04:206:5421:08
6:48
+0:01
20K
12.43 mi11:52:201:25:386:5321:18
6:51
+0:03
Half
13.11 mi11:56:541:30:126:534:34
6:42
-0:09
25K
15.53 mi12:13:491:47:076:5416:55
6:59
+0:17
30K
18.64 mi12:36:072:09:256:5722:18
7:11
+0:12
20M
20.00 mi12:45:522:19:106:579:45
7:10
-0:01
21M
21.00 mi12:53:452:27:037:007:53
7:53
+0:43
35K
21.75 mi12:58:512:32:097:005:06
6:49
-1:04
23M
23.00 mi13:08:032:41:217:019:12
7:21
+0:32
24M
24.00 mi13:15:122:48:307:017:09
7:09
-0:12
40K
24.85 mi13:21:262:54:447:026:14
7:17
+0:08
25.2M
25.20 mi13:24:042:57:227:022:38
7:38
+0:21
Finish
26.22 mi13:31:043:04:227:027:00
6:52
-0:46

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

6:42 /mi

Average Pace

7:02 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:51

94% of race

Time at Steady Pace

10:31

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:02 /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 mi10:48:4922:077:0722:07
7:07
#6999
10K
6.21 mi11:09:5443:126:5721:05
6:47
#6224
15K
9.32 mi11:31:021:04:206:5421:08
6:48
#5862
20K
12.43 mi11:52:201:25:386:5321:18
6:51
#5649
Half
13.11 mi11:56:541:30:126:534:34
6:42
#5585
25K
15.53 mi12:13:491:47:076:5416:55
6:59
#5556
30K
18.64 mi12:36:072:09:256:5722:18
7:11
#5487
20M
20.00 mi12:45:522:19:106:579:45
7:10
#5415
21M
21.00 mi12:53:452:27:037:007:53
7:53
#5436
35K
21.75 mi12:58:512:32:097:005:06
6:49
#5362
23M
23.00 mi13:08:032:41:217:019:12
7:21
#5320
24M
24.00 mi13:15:122:48:307:017:09
7:09
#5276
40K
24.85 mi13:21:262:54:447:026:14
7:17
#5226
25.2M
25.20 mi13:24:042:57:227:022:38
7:38
#5190
Finish
26.22 mi13:31:043:04:227:027:00
6:52
#5132
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi69997167165176(Top 19%)385(Top 3%)385(Top 21%)
10K6.21 mi3.10 mi6224+775558+158558+1585177(Top 19%)381(Top 3%)381(Top 20%)
15K9.32 mi3.11 mi5862+362484+74484+745176(Top 19%)385(Top 3%)385(Top 21%)
20K12.43 mi3.11 mi5649+213440+44440+444987(Top 19%)362(Top 3%)362(Top 19%)
Half13.11 mi0.68 mi5585+64429+11429+114388(Top 16%)297(Top 3%)297(Top 16%)
25K15.53 mi2.42 mi5556+29427+2427+25455(Top 20%)429(Top 4%)429(Top 23%)
30K18.64 mi3.11 mi5487+69425+2425+25376(Top 20%)472(Top 4%)472(Top 25%)
20M20.00 mi1.36 mi5415+72420+5420+55013(Top 19%)459(Top 4%)459(Top 24%)
21M21.00 mi1.00 mi5436-21434-14434-146653(Top 25%)996(Top 9%)996(Top 53%)
35K21.75 mi0.75 mi5362+74429+5429+54358(Top 16%)367(Top 3%)367(Top 20%)
23M23.00 mi1.25 mi5320+42431-2431-25574(Top 21%)673(Top 6%)673(Top 36%)
24M24.00 mi1.00 mi5276+44429+2429+25486(Top 21%)711(Top 6%)711(Top 38%)
40K24.85 mi0.85 mi5226+50431-2431-25417(Top 20%)772(Top 7%)772(Top 41%)
25.2M25.20 mi0.35 mi5190+36430+1430+14623(Top 17%)595(Top 5%)595(Top 32%)
Finish26.22 mi1.02 mi5132+58427+3427+34480(Top 17%)573(Top 5%)573(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

5176

Females

385

F40-44

385

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5177

Females

381

F40-44

381

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

5176

Females

385

F40-44

385

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

4987

Females

362

F40-44

362

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4388

Females

297

F40-44

297

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5455

Females

429

F40-44

429

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5376

Females

472

F40-44

472

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5013

Females

459

F40-44

459

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6653

Females

996

F40-44

996

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4358

Females

367

F40-44

367

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5574

Females

673

F40-44

673

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5486

Females

711

F40-44

711

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5417

Females

772

F40-44

772

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4623

Females

595

F40-44

595

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4480

Females

573

F40-44

573

Passing Analysis

Category:
Athletes Passed
2286
Passed By
419
Net Change
+1867
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6999
5K → 10K78813+775#6999#6224
10K → 15K37513+362#6224#5862
15K → 20K23623+213#5862#5649
20K → Half662+64#5649#5585
Half → 25K9667+29#5585#5556
25K → 30K15182+69#5556#5487
30K → 20M9624+72#5487#5415
20M → 21M5475-21#5415#5436
21M → 35K806+74#5436#5362
35K → 23M8139+42#5362#5320
23M → 24M6925+44#5320#5276
24M → 40K7424+50#5276#5226
40K → 25.2M415+36#5226#5190
25.2M → Finish7921+58#5190#5132
TOTALS2286419+1867
📊

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