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BOSTON MARATHON 2025

Lexa Grasz

MA

Bib: 17925 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 22%
Gender (Female)
#0 / 12228
Top 6%
Division (F18-39)
#0 / 5469
Top 11%
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
7:09/mi
22:13
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:18/mi
44:53
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:15/mi
1:07:23
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:12/mi
1:29:46
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:02/mi
1:34:34
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:01/mi
1:51:35
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:15/mi
2:14:06
↑ 181↓ 1480.2%
138 ft elev
20M
7:15/mi
2:23:57
↑ 64↓ 500.2%
148 ft elev
21M
7:24/mi
2:31:21
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:52/mi
2:36:29
↑ 17↓ 861.7%
156 ft elev
23M
7:06/mi
2:45:22
↑ 23↓ 630.6%
116 ft elev
24M
6:39/mi
2:52:01
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:47/mi
2:57:49
↓ 200.3%
20 ft elev
25.2M
7:06/mi
3:00:16
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:16/mi
3:06:39
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:34:347:13 /mi+2.6%
2nd Half
1:32:057:01 /mi✓ faster
Negative split — 2.6% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
22:137:093.11 mi22:13
7:09
-
10K
44:537:133.10 mi22:40
7:18
+0:09
15K
1:07:237:143.11 mi22:30
7:15
-0:03
20K
1:29:467:133.11 mi22:23
7:12
-0:03
Half(13.11 mi)
1:34:347:130.68 mi4:48
7:02
-0:10
25K
1:51:357:112.42 mi17:01
7:01
-0:01
30K
2:14:067:123.11 mi22:31
7:15
+0:14
20M
2:23:577:121.36 mi9:51
7:15
0:00
21M
2:31:217:121.00 mi7:24
7:24
+0:09
35K
2:36:297:120.75 mi5:08
6:52
-0:32
23M
2:45:227:111.25 mi8:53
7:06
+0:14
24M
2:52:017:101.00 mi6:39
6:39
-0:27
40K
2:57:497:090.85 mi5:48
6:47
+0:08
25.2M
3:00:167:090.35 mi2:27
7:06
+0:19
Finish(26.22 mi)
3:06:397:071.02 mi6:23
6:16
-0:50
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

6:16 /mi

Average Pace

7:07 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

23:58

13% of race

Time at Steady Pace

2:35:17

83% of race

Time at Slower Pace

7:24

4% of race

Average Pace: 7:07 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi907813961396948616381638
10K3.10 mi9657-5791642-2461642-2461031819631963
15K3.11 mi9576+811635+71635+7948616381638
20K3.11 mi9190+3861498+1371498+137825112061206
Half(13.11 mi)0.68 mi9118+721465+331465+33786310221022
25K2.42 mi8540+5781258+2071258+2076451705705
30K3.11 mi7985+5551105+1531105+1536167719719
20M1.36 mi7725+2601032+731032+735451635635
21M1.00 mi7427+298968+64968+644146405405
35K0.75 mi7286+141945+23945+234545501501
23M1.25 mi7040+246899+46899+464334490490
24M1.00 mi6757+283841+58841+582750222222
40K0.85 mi6523+234793+48793+482804260260
25.2M0.35 mi6406+117766+27766+271878171171
Finish(26.22 mi)1.02 mi6166+240715+51715+511784130130

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9486

Females

1638

F18-39

1638

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10318

Females

1963

F18-39

1963

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9486

Females

1638

F18-39

1638

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8251

Females

1206

F18-39

1206

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7863

Females

1022

F18-39

1022

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

6451

Females

705

F18-39

705

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

6167

Females

719

F18-39

719

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5451

Females

635

F18-39

635

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4146

Females

405

F18-39

405

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4545

Females

501

F18-39

501

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4334

Females

490

F18-39

490

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2750

Females

222

F18-39

222

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2804

Females

260

F18-39

260

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1878

Females

171

F18-39

171

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2story building
+22ft-21ft

Overall

1784

Females

130

F18-39

130

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#9078
5K → 10K
65173-579
#9078 → #9657
10K → 15K
124205+81
#9657 → #9576
15K → 20K
21407+386
#9576 → #9190
20K → Half
274+72
#9190 → #9118
Half → 25K
1579+578
#9118 → #8540
25K → 30K
4559+555
#8540 → #7985
30K → 20M
0260+260
#7985 → #7725
20M → 21M
0298+298
#7725 → #7427
21M → 35K
3144+141
#7427 → #7286
35K → 23M
2248+246
#7286 → #7040
23M → 24M
1284+283
#7040 → #6757
24M → 40K
0234+234
#6757 → #6523
40K → 25.2M
0117+117
#6523 → #6406
25.2M → Finish
0240+240
#6406 → #6166
TOTALS
8093722+2912
#9078 → #6166

Passing Visualized

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