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BOSTON MARATHON 2023

Deborah Breinholt

Bib: 19851•F

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
8:53/mi
27:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
55:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:51/mi
1:22:39
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:51:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:56:52
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:19:10
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:47:16
↑ 181↓ 1480.2%
20M
8:59/mi
2:59:28
↑ 64↓ 500.2%
21M
9:17/mi
3:08:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:15:16
↑ 17↓ 861.7%
23M
8:43/mi
3:26:11
↑ 23↓ 630.6%
24M
8:25/mi
3:34:36
↓ 821.3%
40K· 24.85 mi
8:37/mi
3:41:58
↓ 200.3%
25.2M
9:05/mi
3:45:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:53:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:56:21
Pace8:53 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5427:378:5327:37
8:53
-
10K
6.21 mi11:50:2555:088:5227:31
8:51
-0:02
15K
9.32 mi12:17:561:22:398:5227:31
8:51
0:00
20K
12.43 mi12:46:171:51:008:5628:21
9:07
+0:16
Half
13.11 mi12:52:091:56:528:555:52
8:36
-0:31
25K
15.53 mi13:14:272:19:108:5822:18
9:12
+0:36
30K
18.64 mi13:42:332:47:168:5828:06
9:03
-0:09
20M
20.00 mi13:54:452:59:288:5812:12
8:59
-0:04
21M
21.00 mi14:04:023:08:458:599:17
9:17
+0:18
35K
21.75 mi14:10:333:15:168:596:31
8:43
-0:34
23M
23.00 mi14:21:283:26:118:5810:55
8:43
0:00
24M
24.00 mi14:29:533:34:368:578:25
8:25
-0:18
40K
24.85 mi14:37:153:41:588:567:22
8:37
+0:12
25.2M
25.20 mi14:40:233:45:068:563:08
9:05
+0:28
Finish
26.22 mi14:48:303:53:138:548:07
7:58
-1:07

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

7:58 /mi

Average Pace

8:54 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

47:12

20% of race

Time at Steady Pace

3:06:01

80% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:54 /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 mi11:22:5427:378:5327:37
8:53
#19935
10K
6.21 mi11:50:2555:088:5227:31
8:51
#20049
15K
9.32 mi12:17:561:22:398:5227:31
8:51
#19963
20K
12.43 mi12:46:171:51:008:5628:21
9:07
#20020
Half
13.11 mi12:52:091:56:528:555:52
8:36
#19928
25K
15.53 mi13:14:272:19:108:5822:18
9:12
#19924
30K
18.64 mi13:42:332:47:168:5828:06
9:03
#19462
20M
20.00 mi13:54:452:59:288:5812:12
8:59
#19236
21M
21.00 mi14:04:023:08:458:599:17
9:17
#19001
35K
21.75 mi14:10:333:15:168:596:31
8:43
#18902
23M
23.00 mi14:21:283:26:118:5810:55
8:43
#18641
24M
24.00 mi14:29:533:34:368:578:25
8:25
#18459
40K
24.85 mi14:37:153:41:588:567:22
8:37
#18309
25.2M
25.20 mi14:40:233:45:068:563:08
9:05
#18236
Finish
26.22 mi14:48:303:53:138:548:07
7:58
#18024
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi199357768776819831(Top 74%)7583(Top 66%)7583(Top 404%)
10K6.21 mi3.10 mi20049-1147792-247792-2420202(Top 76%)7819(Top 68%)7819(Top 416%)
15K9.32 mi3.11 mi19963+867713+797713+7919831(Top 74%)7583(Top 66%)7583(Top 404%)
20K12.43 mi3.11 mi20020-577734-217734-2120256(Top 76%)7815(Top 68%)7815(Top 416%)
Half13.11 mi0.68 mi19928+927681+537681+5318361(Top 69%)6696(Top 59%)6696(Top 357%)
25K15.53 mi2.42 mi19924+47670+117670+1119830(Top 74%)7598(Top 67%)7598(Top 405%)
30K18.64 mi3.11 mi19462+4627405+2657405+26517418(Top 65%)6312(Top 55%)6312(Top 336%)
20M20.00 mi1.36 mi19236+2267290+1157290+11516449(Top 62%)5844(Top 51%)5844(Top 311%)
21M21.00 mi1.00 mi19001+2357166+1247166+12414936(Top 56%)5025(Top 44%)5025(Top 268%)
35K21.75 mi0.75 mi18902+997120+467120+4616511(Top 62%)6010(Top 53%)6010(Top 320%)
23M23.00 mi1.25 mi18641+2616977+1436977+14314540(Top 55%)4934(Top 43%)4934(Top 263%)
24M24.00 mi1.00 mi18459+1826883+946883+9414025(Top 53%)4699(Top 41%)4699(Top 250%)
40K24.85 mi0.85 mi18309+1506818+656818+6514107(Top 53%)4818(Top 42%)4818(Top 257%)
25.2M25.20 mi0.35 mi18236+736781+376781+3713128(Top 49%)4326(Top 38%)4326(Top 230%)
Finish26.22 mi1.02 mi18024+2126669+1126669+11211928(Top 45%)3685(Top 32%)3685(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19831

Females

7583

F40-44

7583

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20202

Females

7819

F40-44

7819

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19831

Females

7583

F40-44

7583

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20256

Females

7815

F40-44

7815

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18361

Females

6696

F40-44

6696

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19830

Females

7598

F40-44

7598

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17418

Females

6312

F40-44

6312

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16449

Females

5844

F40-44

5844

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14936

Females

5025

F40-44

5025

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16511

Females

6010

F40-44

6010

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

14540

Females

4934

F40-44

4934

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14025

Females

4699

F40-44

4699

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14107

Females

4818

F40-44

4818

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13128

Females

4326

F40-44

4326

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11928

Females

3685

F40-44

3685

Passing Analysis

Category:
Athletes Passed
2804
Passed By
893
Net Change
+1911
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19935
5K → 10K248362-114#19935#20049
10K → 15K232146+86#20049#19963
15K → 20K159216-57#19963#20020
20K → Half964+92#20020#19928
Half → 25K131127+4#19928#19924
25K → 30K47715+462#19924#19462
30K → 20M2304+226#19462#19236
20M → 21M2405+235#19236#19001
21M → 35K1034+99#19001#18902
35K → 23M2643+261#18902#18641
23M → 24M1820+182#18641#18459
24M → 40K1533+150#18459#18309
40K → 25.2M741+73#18309#18236
25.2M → Finish2153+212#18236#18024
TOTALS2804893+1911
📊

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