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BOSTON MARATHON 2023

Sandra Huls

Bib: 19175•F

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0:00
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:50
Rank: #16269
Start → 5K
8:19/mi
25:50 split
10K· 6.21 mi
50:28
Rank: #15264 (+1005)
5K → 10K
7:56/mi
24:38 split
15K· 9.32 mi
1:15:26
Rank: #15081 (+183)
10K → 15K
8:02/mi
24:58 split
20K· 12.43 mi
1:40:48
Rank: #14957 (+124)
15K → 20K
8:10/mi
25:22 split
Half· 13.11 mi
1:46:25
Rank: #15004 (-47)
20K → Half
8:14/mi
5:37 split
25K· 15.53 mi
2:06:53
Rank: #15117 (-113)
Half → 25K
8:26/mi
20:28 split
30K· 18.64 mi
2:34:41
Rank: #15459 (-342)
25K → 30K
8:57/mi
27:48 split
20M
2:47:00
Rank: #15565 (-106)
30K → 20M
9:04/mi
12:19 split
21M
2:56:28
Rank: #15555 (+10)
20M → 21M
9:28/mi
9:28 split
35K· 21.75 mi
3:03:02
Rank: #15600 (-45)
21M → 35K
8:47/mi
6:34 split
23M
3:14:16
Rank: #15601 (-1)
35K → 23M
8:58/mi
11:14 split
24M
3:23:17
Rank: #15674 (-73)
23M → 24M
9:01/mi
9:01 split
40K· 24.85 mi
3:30:54
Rank: #15673 (+1)
24M → 40K
8:54/mi
7:37 split
25.2M
3:34:11
Rank: #15671 (+2)
40K → 25.2M
9:31/mi
3:17 split
Finish· 26.22 mi
3:42:41
Rank: #15620 (+51)
25.2M → Finish
8:20/mi
8:30 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:25
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:56:16
Pace8:52 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3925:508:1925:50
8:19
-
10K
6.21 mi11:42:1750:288:0724:38
7:56
-0:23
15K
9.32 mi12:07:151:15:268:0624:58
8:02
+0:06
20K
12.43 mi12:32:371:40:488:0725:22
8:10
+0:08
Half
13.11 mi12:38:141:46:258:075:37
8:14
+0:04
25K
15.53 mi12:58:422:06:538:1020:28
8:26
+0:12
30K
18.64 mi13:26:302:34:418:1827:48
8:57
+0:31
20M
20.00 mi13:38:492:47:008:2112:19
9:04
+0:07
21M
21.00 mi13:48:172:56:288:249:28
9:28
+0:24
35K
21.75 mi13:54:513:03:028:256:34
8:47
-0:41
23M
23.00 mi14:06:053:14:168:2711:14
8:58
+0:11
24M
24.00 mi14:15:063:23:178:289:01
9:01
+0:03
40K
24.85 mi14:22:433:30:548:297:37
8:54
-0:07
25.2M
25.20 mi14:26:003:34:118:303:17
9:31
+0:37
Finish
26.22 mi14:34:303:42:418:308:30
8:20
-1:11

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

7:56 /mi

Average Pace

8:30 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:23

61% of race

Time at Steady Pace

1:14:33

33% of race

Time at Slower Pace

12:45

6% of race

Average Pace: 8:30 /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 mi11:17:3925:508:1925:50
8:19
#16269
10K
6.21 mi11:42:1750:288:0724:38
7:56
#15264
15K
9.32 mi12:07:151:15:268:0624:58
8:02
#15081
20K
12.43 mi12:32:371:40:488:0725:22
8:10
#14957
Half
13.11 mi12:38:141:46:258:075:37
8:14
#15004
25K
15.53 mi12:58:422:06:538:1020:28
8:26
#15117
30K
18.64 mi13:26:302:34:418:1827:48
8:57
#15459
20M
20.00 mi13:38:492:47:008:2112:19
9:04
#15565
21M
21.00 mi13:48:172:56:288:249:28
9:28
#15555
35K
21.75 mi13:54:513:03:028:256:34
8:47
#15600
23M
23.00 mi14:06:053:14:168:2711:14
8:58
#15601
24M
24.00 mi14:15:063:23:178:289:01
9:01
#15674
40K
24.85 mi14:22:433:30:548:297:37
8:54
#15673
25.2M
25.20 mi14:26:003:34:118:303:17
9:31
#15671
Finish
26.22 mi14:34:303:42:418:308:30
8:20
#15620
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi162695450545014708(Top 55%)4513(Top 40%)4513(Top 92%)
10K6.21 mi3.10 mi15264+10054810+6404810+64014249(Top 54%)4210(Top 37%)4210(Top 86%)
15K9.32 mi3.11 mi15081+1834715+954715+9514708(Top 55%)4513(Top 40%)4513(Top 92%)
20K12.43 mi3.11 mi14957+1244658+574658+5714728(Top 55%)4549(Top 40%)4549(Top 93%)
Half13.11 mi0.68 mi15004-474685-274685-2716072(Top 60%)5340(Top 47%)5340(Top 109%)
25K15.53 mi2.42 mi15117-1134780-954780-9515858(Top 60%)5354(Top 47%)5354(Top 110%)
30K18.64 mi3.11 mi15459-3425049-2695049-26916902(Top 63%)6007(Top 53%)6007(Top 123%)
20M20.00 mi1.36 mi15565-1065130-815130-8116869(Top 63%)6073(Top 53%)6073(Top 124%)
21M21.00 mi1.00 mi15555+105148-185148-1815818(Top 59%)5521(Top 48%)5521(Top 113%)
35K21.75 mi0.75 mi15600-455198-505198-5016842(Top 63%)6186(Top 54%)6186(Top 127%)
23M23.00 mi1.25 mi15601-15226-285226-2815930(Top 60%)5700(Top 50%)5700(Top 117%)
24M24.00 mi1.00 mi15674-735289-635289-6317317(Top 65%)6523(Top 57%)6523(Top 134%)
40K24.85 mi0.85 mi15673+15287+25287+215679(Top 59%)5671(Top 50%)5671(Top 116%)
25.2M25.20 mi0.35 mi15671+25287528715328(Top 58%)5489(Top 48%)5489(Top 112%)
Finish26.22 mi1.02 mi15620+515269+185269+1814384(Top 54%)4946(Top 43%)4946(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14708

Females

4513

F18-39

4513

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14249

Females

4210

F18-39

4210

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14708

Females

4513

F18-39

4513

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14728

Females

4549

F18-39

4549

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16072

Females

5340

F18-39

5340

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

15858

Females

5354

F18-39

5354

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16902

Females

6007

F18-39

6007

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16869

Females

6073

F18-39

6073

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15818

Females

5521

F18-39

5521

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16842

Females

6186

F18-39

6186

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

15930

Females

5700

F18-39

5700

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17317

Females

6523

F18-39

6523

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15679

Females

5671

F18-39

5671

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15328

Females

5489

F18-39

5489

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14384

Females

4946

F18-39

4946

Passing Analysis

Category:
Athletes Passed
2259
Passed By
1610
Net Change
+649
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16269
5K → 10K105651+1005#16269#15264
10K → 15K28299+183#15264#15081
15K → 20K246122+124#15081#14957
20K → Half2370-47#14957#15004
Half → 25K93206-113#15004#15117
25K → 30K88430-342#15117#15459
30K → 20M52158-106#15459#15565
20M → 21M8575+10#15565#15555
21M → 35K3277-45#15555#15600
35K → 23M8384-1#15600#15601
23M → 24M47120-73#15601#15674
24M → 40K6160+1#15674#15673
40K → 25.2M2927+2#15673#15671
25.2M → Finish8231+51#15671#15620
TOTALS22591610+649
📊

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