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BOSTON MARATHON 2023

Zoe Bellinghausen

Bib: 17105•F

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
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
8:21/mi
25:55
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
51:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:17:02
↑ 67↓ 78
20K· 12.43 mi
8:16/mi
1:42:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:48:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:14/mi
2:08:13
↑ 66↓ 880.2%
30K· 18.64 mi
8:31/mi
2:34:41
↑ 181↓ 1480.2%
20M
8:33/mi
2:46:18
↑ 64↓ 500.2%
21M
8:58/mi
2:55:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:01:28
↑ 17↓ 861.7%
23M
8:33/mi
3:12:10
↑ 23↓ 630.6%
24M
8:22/mi
3:20:32
↓ 821.3%
40K· 24.85 mi
8:36/mi
3:27:53
↓ 200.3%
25.2M
9:11/mi
3:31:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:39:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:16
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time1:51:20
Pace8:30 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4125:558:2125:55
8:21
-
10K
6.21 mi11:45:1651:308:1725:35
8:14
-0:07
15K
9.32 mi12:10:481:17:028:1625:32
8:13
-0:01
20K
12.43 mi12:36:281:42:428:1625:40
8:16
+0:03
Half
13.11 mi12:42:021:48:168:165:34
8:10
-0:06
25K
15.53 mi13:01:592:08:138:1519:57
8:14
+0:04
30K
18.64 mi13:28:272:34:418:1826:28
8:31
+0:17
20M
20.00 mi13:40:042:46:188:1911:37
8:33
+0:02
21M
21.00 mi13:49:022:55:168:218:58
8:58
+0:25
35K
21.75 mi13:55:143:01:288:216:12
8:17
-0:41
23M
23.00 mi14:05:563:12:108:2110:42
8:33
+0:16
24M
24.00 mi14:14:183:20:328:218:22
8:22
-0:11
40K
24.85 mi14:21:393:27:538:227:21
8:36
+0:14
25.2M
25.20 mi14:24:493:31:038:233:10
9:11
+0:35
Finish
26.22 mi14:33:223:39:368:238:33
8:23
-0:48

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

8:10 /mi

Average Pace

8:23 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:26

99% of race

Time at Steady Pace

3:10

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:23 /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 mi11:19:4125:558:2125:55
8:21
#16444
10K
6.21 mi11:45:1651:308:1725:35
8:14
#16422
15K
9.32 mi12:10:481:17:028:1625:32
8:13
#16269
20K
12.43 mi12:36:281:42:428:1625:40
8:16
#16013
Half
13.11 mi12:42:021:48:168:165:34
8:10
#15978
25K
15.53 mi13:01:592:08:138:1519:57
8:14
#15716
30K
18.64 mi13:28:272:34:418:1826:28
8:31
#15456
20M
20.00 mi13:40:042:46:188:1911:37
8:33
#15330
21M
21.00 mi13:49:022:55:168:218:58
8:58
#15178
35K
21.75 mi13:55:143:01:288:216:12
8:17
#15133
23M
23.00 mi14:05:563:12:108:2110:42
8:33
#15020
24M
24.00 mi14:14:183:20:328:218:22
8:22
#14941
40K
24.85 mi14:21:393:27:538:227:21
8:36
#14877
25.2M
25.20 mi14:24:493:31:038:233:10
9:11
#14836
Finish
26.22 mi14:33:223:39:368:238:33
8:23
#14836
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi164445564556415994(Top 60%)5294(Top 46%)5294(Top 282%)
10K6.21 mi3.10 mi16422+225538+265538+2616495(Top 62%)5570(Top 49%)5570(Top 297%)
15K9.32 mi3.11 mi16269+1535450+885450+8815994(Top 60%)5294(Top 46%)5294(Top 282%)
20K12.43 mi3.11 mi16013+2565314+1365314+13615368(Top 58%)4946(Top 43%)4946(Top 263%)
Half13.11 mi0.68 mi15978+355294+205294+2015530(Top 58%)5002(Top 44%)5002(Top 266%)
25K15.53 mi2.42 mi15716+2625160+1345160+13414465(Top 54%)4492(Top 39%)4492(Top 239%)
30K18.64 mi3.11 mi15456+2605046+1145046+11414451(Top 54%)4595(Top 40%)4595(Top 245%)
20M20.00 mi1.36 mi15330+1264983+634983+6313948(Top 52%)4382(Top 38%)4382(Top 233%)
21M21.00 mi1.00 mi15178+1524910+734910+7313244(Top 50%)4079(Top 36%)4079(Top 217%)
35K21.75 mi0.75 mi15133+454899+114899+1114059(Top 53%)4595(Top 40%)4595(Top 245%)
23M23.00 mi1.25 mi15020+1134851+484851+4813530(Top 51%)4361(Top 38%)4361(Top 232%)
24M24.00 mi1.00 mi14941+794820+314820+3113679(Top 51%)4498(Top 39%)4498(Top 240%)
40K24.85 mi0.85 mi14877+644808+124808+1213963(Top 52%)4726(Top 41%)4726(Top 252%)
25.2M25.20 mi0.35 mi14836+414794+144794+1413616(Top 51%)4553(Top 40%)4553(Top 242%)
Finish26.22 mi1.02 mi148364812-184812-1814693(Top 55%)5090(Top 45%)5090(Top 271%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15994

Females

5294

F40-44

5294

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16495

Females

5570

F40-44

5570

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15994

Females

5294

F40-44

5294

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15368

Females

4946

F40-44

4946

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15530

Females

5002

F40-44

5002

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

14465

Females

4492

F40-44

4492

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14451

Females

4595

F40-44

4595

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13948

Females

4382

F40-44

4382

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13244

Females

4079

F40-44

4079

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14059

Females

4595

F40-44

4595

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13530

Females

4361

F40-44

4361

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13679

Females

4498

F40-44

4498

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13963

Females

4726

F40-44

4726

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13616

Females

4553

F40-44

4553

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14693

Females

5090

F40-44

5090

Passing Analysis

Category:
Athletes Passed
2391
Passed By
783
Net Change
+1608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16444
5K → 10K302280+22#16444#16422
10K → 15K275122+153#16422#16269
15K → 20K31357+256#16269#16013
20K → Half5116+35#16013#15978
Half → 25K28927+262#15978#15716
25K → 30K32363+260#15716#15456
30K → 20M15630+126#15456#15330
20M → 21M17119+152#15330#15178
21M → 35K6722+45#15178#15133
35K → 23M13825+113#15133#15020
23M → 24M10324+79#15020#14941
24M → 40K8521+64#14941#14877
40K → 25.2M5514+41#14877#14836
25.2M → Finish63630#14836#14836
TOTALS2391783+1608
📊

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