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BOSTON MARATHON 2023

Stacy Bolling

Bib: 21613•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:48/mi
27:19
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
54:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:38/mi
1:21:22
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:48:44
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:54:41
↑ 19↓ 370.5%
25K· 15.53 mi
9:04/mi
2:16:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:31/mi
2:46:15
↑ 181↓ 1480.2%
20M
9:24/mi
2:59:01
↑ 64↓ 500.2%
21M
9:53/mi
3:08:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:44/mi
3:15:26
↑ 17↓ 861.7%
23M
9:23/mi
3:27:11
↑ 23↓ 630.6%
24M
8:49/mi
3:36:00
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:43:34
↓ 200.3%
25.2M
9:25/mi
3:46:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:55:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:41
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:00:40
Pace9:12 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5227:198:4827:19
8:48
-
10K
6.21 mi11:48:0754:348:4727:15
8:46
-0:02
15K
9.32 mi12:14:551:21:228:4426:48
8:38
-0:08
20K
12.43 mi12:42:171:48:448:4527:22
8:49
+0:11
Half
13.11 mi12:48:141:54:418:455:57
8:43
-0:06
25K
15.53 mi13:10:132:16:408:4821:59
9:04
+0:21
30K
18.64 mi13:39:482:46:158:5529:35
9:31
+0:27
20M
20.00 mi13:52:342:59:018:5712:46
9:24
-0:07
21M
21.00 mi14:02:273:08:549:009:53
9:53
+0:29
35K
21.75 mi14:08:593:15:268:596:32
8:44
-1:09
23M
23.00 mi14:20:443:27:119:0011:45
9:23
+0:39
24M
24.00 mi14:29:333:36:009:008:49
8:49
-0:34
40K
24.85 mi14:37:073:43:349:007:34
8:51
+0:02
25.2M
25.20 mi14:40:223:46:499:003:15
9:25
+0:34
Finish
26.22 mi14:48:543:55:218:598:32
8:22
-1:03

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

8:22 /mi

Average Pace

8:59 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:07

71% of race

Time at Steady Pace

57:21

24% of race

Time at Slower Pace

9:53

4% of race

Average Pace: 8:59 /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 mi11:20:5227:198:4827:19
8:48
#19424
10K
6.21 mi11:48:0754:348:4727:15
8:46
#19585
15K
9.32 mi12:14:551:21:228:4426:48
8:38
#19211
20K
12.43 mi12:42:171:48:448:4527:22
8:49
#19065
Half
13.11 mi12:48:141:54:418:455:57
8:43
#19060
25K
15.53 mi13:10:132:16:408:4821:59
9:04
#19073
30K
18.64 mi13:39:482:46:158:5529:35
9:31
#19203
20M
20.00 mi13:52:342:59:018:5712:46
9:24
#19123
21M
21.00 mi14:02:273:08:549:009:53
9:53
#19030
35K
21.75 mi14:08:593:15:268:596:32
8:44
#18947
23M
23.00 mi14:20:443:27:119:0011:45
9:23
#18882
24M
24.00 mi14:29:333:36:009:008:49
8:49
#18748
40K
24.85 mi14:37:073:43:349:007:34
8:51
#18631
25.2M
25.20 mi14:40:223:46:499:003:15
9:25
#18569
Finish
26.22 mi14:48:543:55:218:598:32
8:22
#18441
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi194247458745818612(Top 70%)6865(Top 60%)6865(Top 378%)
10K6.21 mi3.10 mi19585-1617520-627520-6219789(Top 74%)7574(Top 66%)7574(Top 417%)
15K9.32 mi3.11 mi19211+3747255+2657255+26518612(Top 70%)6865(Top 60%)6865(Top 378%)
20K12.43 mi3.11 mi19065+1467154+1017154+10118747(Top 70%)6938(Top 61%)6938(Top 382%)
Half13.11 mi0.68 mi19060+57158-47158-419091(Top 72%)7133(Top 62%)7133(Top 393%)
25K15.53 mi2.42 mi19073-137159-17159-119279(Top 72%)7295(Top 64%)7295(Top 401%)
30K18.64 mi3.11 mi19203-1307258-997258-9919510(Top 73%)7477(Top 65%)7477(Top 412%)
20M20.00 mi1.36 mi19123+807224+347224+3418450(Top 69%)6998(Top 61%)6998(Top 385%)
21M21.00 mi1.00 mi19030+937184+407184+4017611(Top 66%)6534(Top 57%)6534(Top 360%)
35K21.75 mi0.75 mi18947+837146+387146+3816637(Top 62%)6077(Top 53%)6077(Top 334%)
23M23.00 mi1.25 mi18882+657120+267120+2617894(Top 67%)6805(Top 60%)6805(Top 375%)
24M24.00 mi1.00 mi18748+1347057+637057+6316340(Top 61%)6003(Top 53%)6003(Top 330%)
40K24.85 mi0.85 mi18631+1176998+596998+5915406(Top 58%)5538(Top 48%)5538(Top 305%)
25.2M25.20 mi0.35 mi18569+626965+336965+3314922(Top 56%)5280(Top 46%)5280(Top 291%)
Finish26.22 mi1.02 mi18441+1286903+626903+6214613(Top 55%)5064(Top 44%)5064(Top 279%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

18612

Females

6865

F45-49

6865

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19789

Females

7574

F45-49

7574

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

18612

Females

6865

F45-49

6865

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18747

Females

6938

F45-49

6938

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19091

Females

7133

F45-49

7133

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19279

Females

7295

F45-49

7295

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19510

Females

7477

F45-49

7477

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18450

Females

6998

F45-49

6998

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17611

Females

6534

F45-49

6534

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16637

Females

6077

F45-49

6077

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17894

Females

6805

F45-49

6805

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16340

Females

6003

F45-49

6003

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15406

Females

5538

F45-49

5538

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14922

Females

5280

F45-49

5280

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14613

Females

5064

F45-49

5064

Passing Analysis

Category:
Athletes Passed
2100
Passed By
1117
Net Change
+983
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19424
5K → 10K240401-161#19424#19585
10K → 15K43662+374#19585#19211
15K → 20K23690+146#19211#19065
20K → Half2823+5#19065#19060
Half → 25K117130-13#19060#19073
25K → 30K124254-130#19073#19203
30K → 20M12646+80#19203#19123
20M → 21M12532+93#19123#19030
21M → 35K9310+83#19030#18947
35K → 23M10338+65#18947#18882
23M → 24M14410+134#18882#18748
24M → 40K1214+117#18748#18631
40K → 25.2M708+62#18631#18569
25.2M → Finish1379+128#18569#18441
TOTALS21001117+983
📊

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