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BOSTON MARATHON 2025

Fernanda Lanza

Bib: 15611 F BR

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 35%
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
7:10/mi
22:17
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:09/mi
44:30
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:14/mi
1:06:57
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:21/mi
1:29:48
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:05/mi
1:34:38
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:25/mi
1:52:38
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:55/mi
2:17:15
↑ 181↓ 1480.2%
138 ft elev
20M
8:23/mi
2:28:39
↑ 64↓ 500.2%
148 ft elev
21M
9:11/mi
2:37:50
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:52/mi
2:43:43
↑ 17↓ 861.7%
156 ft elev
23M
8:25/mi
2:54:15
↑ 23↓ 630.6%
116 ft elev
24M
8:00/mi
3:02:15
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:21/mi
3:09:23
↓ 200.3%
20 ft elev
25.2M
9:11/mi
3:12:33
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:19/mi
3:21:02
↑ 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
1:34:387:13 /mi⚡ faster
2nd Half
1:46:248:07 /mi+12.4%
Positive split — 12.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
22:177:103.11 mi22:17
7:10
-
10K
44:307:103.10 mi22:13
7:09
-0:01
15K
1:06:577:113.11 mi22:27
7:14
+0:05
20K
1:29:487:143.11 mi22:51
7:21
+0:07
Half(13.11 mi)
1:34:387:130.68 mi4:50
7:05
-0:16
25K
1:52:387:152.42 mi18:00
7:25
+0:20
30K
2:17:157:223.11 mi24:37
7:55
+0:30
20M
2:28:397:261.36 mi11:24
8:23
+0:28
21M
2:37:507:311.00 mi9:11
9:11
+0:48
35K
2:43:437:320.75 mi5:53
7:52
-1:19
23M
2:54:157:351.25 mi10:32
8:25
+0:33
24M
3:02:157:361.00 mi8:00
8:00
-0:25
40K
3:09:237:370.85 mi7:08
8:21
+0:21
25.2M
3:12:337:380.35 mi3:10
9:11
+0:50
Finish(26.22 mi)
3:21:027:401.02 mi8:29
8:19
-0:52
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:05 /mi

Average Pace

7:40 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:52:38

56% of race

Time at Steady Pace

38:30

19% of race

Time at Slower Pace

49:54

25% of race

Average Pace: 7:40 /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 mi925714901490935315881588
10K3.10 mi9138+1191437+531437+53910014191419
15K3.11 mi9191-531475-381475-38935315881588
20K3.11 mi9219-281515-401515-40952417511751
Half(13.11 mi)0.68 mi9167+521488+271488+27826912071207
25K2.42 mi9141+261515-271515-27935618021802
30K3.11 mi9391-2501677-1621677-1621082326962696
20M1.36 mi9660-2691841-1641841-1641308040154015
21M1.00 mi9950-2902004-1632004-1631453649024902
35K0.75 mi9979-292058-542058-541131032623262
23M1.25 mi10157-1782188-1302188-1301277641424142
24M1.00 mi10169-122227-392227-391124734273427
40K0.85 mi10234-652289-622289-621242741364136
25.2M0.35 mi10281-472335-462335-461282943874387
Finish(26.22 mi)1.02 mi10444-1632441-1062441-1061507555125512

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9353

Females

1588

F18-39

1588

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9100

Females

1419

F18-39

1419

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9353

Females

1588

F18-39

1588

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9524

Females

1751

F18-39

1751

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8269

Females

1207

F18-39

1207

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9356

Females

1802

F18-39

1802

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10823

Females

2696

F18-39

2696

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13080

Females

4015

F18-39

4015

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14536

Females

4902

F18-39

4902

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11310

Females

3262

F18-39

3262

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12776

Females

4142

F18-39

4142

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11247

Females

3427

F18-39

3427

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12427

Females

4136

F18-39

4136

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12829

Females

4387

F18-39

4387

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

15075

Females

5512

F18-39

5512

Passing Analysis

Category:
Passed
1375
Passed By
2557
Net Change
-1187
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9257
5K → 10K290171+119#9257#9138
10K → 15K140193-53#9138#9191
15K → 20K161189-28#9191#9219
20K → Half6513+52#9219#9167
Half → 25K167141+26#9167#9141
25K → 30K149399-250#9141#9391
30K → 20M49317-269#9391#9660
20M → 21M37326-290#9660#9950
21M → 35K6391-29#9950#9979
35K → 23M57233-178#9979#10157
23M → 24M8092-12#10157#10169
24M → 40K57122-65#10169#10234
40K → 25.2M2471-47#10234#10281
25.2M → Finish36199-163#10281#10444
TOTALS13752557-1187

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