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BOSTON MARATHON 2025

Lauren Shurson

MN

Bib: 14315 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:48/mi
21:07
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:43/mi
41:58
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:42/mi
1:02:46
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:50/mi
1:24:01
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:50/mi
1:28:41
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:55/mi
1:45:27
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:18/mi
2:08:08
↑ 181↓ 1480.2%
138 ft elev
20M
7:14/mi
2:17:58
↑ 64↓ 500.2%
148 ft elev
21M
7:49/mi
2:25:47
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:10/mi
2:31:09
↑ 17↓ 861.7%
156 ft elev
23M
7:18/mi
2:40:17
↑ 23↓ 630.6%
116 ft elev
24M
7:04/mi
2:47:21
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:59/mi
2:53:19
↓ 200.3%
20 ft elev
25.2M
7:41/mi
2:55:58
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:42/mi
3:02:48
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:41
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:34:07
Pace7:11 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2021:076:4821:07
6:48
-
10K
6.21 mi11:13:1141:586:4520:51
6:43
-0:05
15K
9.32 mi11:33:591:02:466:4420:48
6:42
-0:01
20K
12.43 mi11:55:141:24:016:4621:15
6:50
+0:08
Half
13.11 mi11:59:541:28:416:464:40
6:50
0:00
25K
15.53 mi12:16:401:45:276:4716:46
6:55
+0:05
30K
18.64 mi12:39:212:08:086:5222:41
7:18
+0:23
20M
20.00 mi12:49:112:17:586:549:50
7:14
-0:04
21M
21.00 mi12:57:002:25:476:577:49
7:49
+0:35
35K
21.75 mi13:02:222:31:096:575:22
7:10
-0:39
23M
23.00 mi13:11:302:40:176:589:08
7:18
+0:08
24M
24.00 mi13:18:342:47:216:587:04
7:04
-0:14
40K
24.85 mi13:24:322:53:196:585:58
6:59
-0:05
25.2M
25.20 mi13:27:112:55:586:592:39
7:41
+0:42
Finish
26.22 mi13:34:013:02:486:596:50
6:42
-0:59

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

6:59 /mi

Slowest Pace

7:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:20

94% of race

Time at Steady Pace

10:28

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:58 /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 mi10:52:2021:076:4821:07
6:48
#6301
10K
6.21 mi11:13:1141:586:4520:51
6:43
#5874
15K
9.32 mi11:33:591:02:466:4420:48
6:42
#5574
20K
12.43 mi11:55:141:24:016:4621:15
6:50
#5582
Half
13.11 mi11:59:541:28:416:464:40
6:50
#5632
25K
15.53 mi12:16:401:45:276:4716:46
6:55
#5616
30K
18.64 mi12:39:212:08:086:5222:41
7:18
#5777
20M
20.00 mi12:49:112:17:586:549:50
7:14
#5727
21M
21.00 mi12:57:002:25:476:577:49
7:49
#5703
35K
21.75 mi13:02:222:31:096:575:22
7:10
#5702
23M
23.00 mi13:11:302:40:176:589:08
7:18
#5613
24M
24.00 mi13:18:342:47:216:587:04
7:04
#5525
40K
24.85 mi13:24:322:53:196:585:58
6:59
#5421
25.2M
25.20 mi13:27:112:55:586:592:39
7:41
#5376
Finish
26.22 mi13:34:013:02:486:596:50
6:42
#5267
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi63015295295041346346
10K6.21 mi3.10 mi5874+427456+73456+735457406406
15K9.32 mi3.11 mi5574+300421+35421+355041346346
20K12.43 mi3.11 mi5582-8434-13434-135708488488
Half13.11 mi0.68 mi5632-50444-10444-106523644644
25K15.53 mi2.42 mi5616+16446-2446-25787543543
30K18.64 mi3.11 mi5777-161506-60506-606473819819
20M20.00 mi1.36 mi5727+50502+4502+45428612612
21M21.00 mi1.00 mi5703+24506-4506-4630010171017
35K21.75 mi0.75 mi5702+1513-7513-7645610721072
23M23.00 mi1.25 mi5613+89515-2515-25453799799
24M24.00 mi1.00 mi5525+88513+2513+25046730730
40K24.85 mi0.85 mi5421+104502+11502+113802447447
25.2M25.20 mi0.35 mi5376+455025024316638638
Finish26.22 mi1.02 mi5267+109490+12490+123932524524

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

5041

Females

346

F18-39

346

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5457

Females

406

F18-39

406

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

5041

Females

346

F18-39

346

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5708

Females

488

F18-39

488

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

6523

Females

644

F18-39

644

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5787

Females

543

F18-39

543

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6473

Females

819

F18-39

819

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5428

Females

612

F18-39

612

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6300

Females

1017

F18-39

1017

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6456

Females

1072

F18-39

1072

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5453

Females

799

F18-39

799

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

5046

Females

730

F18-39

730

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3802

Females

447

F18-39

447

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4316

Females

638

F18-39

638

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3932

Females

524

F18-39

524

Passing Analysis

Category:
Athletes Passed
1899
Passed By
865
Net Change
+1034
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6301
5K → 10K46740+427#6301#5874
10K → 15K32222+300#5874#5574
15K → 20K129137-8#5574#5582
20K → Half959-50#5582#5632
Half → 25K129113+16#5632#5616
25K → 30K136297-161#5616#5777
30K → 20M9040+50#5777#5727
20M → 21M7349+24#5727#5703
21M → 35K4241+1#5703#5702
35K → 23M12435+89#5702#5613
23M → 24M10214+88#5613#5525
24M → 40K1117+104#5525#5421
40K → 25.2M472+45#5421#5376
25.2M → Finish1189+109#5376#5267
TOTALS1899865+1034

Passing Charts

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