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BOSTON MARATHON 2025

Sierra Andrade

Bib: 14354•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
47:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:08
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:35:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:40:43
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:00:26
↑ 66↓ 880.2%
30K· 18.64 mi
8:50/mi
2:27:53
↑ 181↓ 1480.2%
20M
9:12/mi
2:40:23
↑ 64↓ 500.2%
21M
9:27/mi
2:49:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
2:55:57
↑ 17↓ 861.7%
23M
8:28/mi
3:06:33
↑ 23↓ 630.6%
24M
8:47/mi
3:15:20
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:23:05
↓ 200.3%
25.2M
9:08/mi
3:26:14
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:34:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:43
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:53:53
Pace8:41 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4323:347:3523:34
7:35
-
10K
6.21 mi11:17:3447:257:3823:51
7:41
+0:06
15K
9.32 mi11:41:171:11:087:3823:43
7:38
-0:03
20K
12.43 mi12:05:341:35:257:4124:17
7:49
+0:11
Half
13.11 mi12:10:521:40:437:415:18
7:46
-0:03
25K
15.53 mi12:30:352:00:267:4519:43
8:08
+0:22
30K
18.64 mi12:58:022:27:537:5627:27
8:50
+0:42
20M
20.00 mi13:10:322:40:238:0112:30
9:12
+0:22
21M
21.00 mi13:19:592:49:508:059:27
9:27
+0:15
35K
21.75 mi13:26:062:55:578:056:07
8:11
-1:16
23M
23.00 mi13:36:423:06:338:0710:36
8:28
+0:17
24M
24.00 mi13:45:293:15:208:088:47
8:47
+0:19
40K
24.85 mi13:53:143:23:058:107:45
9:04
+0:17
25.2M
25.20 mi13:56:233:26:148:113:09
9:08
+0:04
Finish
26.22 mi14:04:453:34:368:118:22
8:13
-0:55

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

7:35 /mi

Average Pace

8:11 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:43

47% of race

Time at Steady Pace

44:48

21% of race

Time at Slower Pace

1:09:05

32% of race

Average Pace: 8:11 /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 mi10:53:4323:347:3523:34
7:35
#13008
10K
6.21 mi11:17:3447:257:3823:51
7:41
#13326
15K
9.32 mi11:41:171:11:087:3823:43
7:38
#13156
20K
12.43 mi12:05:341:35:257:4124:17
7:49
#13178
Half
13.11 mi12:10:521:40:437:415:18
7:46
#13215
25K
15.53 mi12:30:352:00:267:4519:43
8:08
#13465
30K
18.64 mi12:58:022:27:537:5627:27
8:50
#14144
20M
20.00 mi13:10:322:40:238:0112:30
9:12
#14482
21M
21.00 mi13:19:592:49:508:059:27
9:27
#14583
35K
21.75 mi13:26:062:55:578:056:07
8:11
#14505
23M
23.00 mi13:36:423:06:338:0710:36
8:28
#14404
24M
24.00 mi13:45:293:15:208:088:47
8:47
#14475
40K
24.85 mi13:53:143:23:058:107:45
9:04
#14531
25.2M
25.20 mi13:56:233:26:148:113:09
9:08
#14493
Finish
26.22 mi14:04:453:34:368:118:22
8:13
#14454
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130083323332312933(Top 46%)3410(Top 28%)3410(Top 62%)
10K6.21 mi3.10 mi13326-3183545-2223545-22213694(Top 48%)3777(Top 31%)3777(Top 69%)
15K9.32 mi3.11 mi13156+1703487+583487+5812933(Top 46%)3410(Top 28%)3410(Top 62%)
20K12.43 mi3.11 mi13178-223541-543541-5413423(Top 47%)3775(Top 31%)3775(Top 69%)
Half13.11 mi0.68 mi13215-373566-253566-2514080(Top 50%)4113(Top 34%)4113(Top 75%)
25K15.53 mi2.42 mi13465-2503751-1853751-18514849(Top 52%)4667(Top 38%)4667(Top 85%)
30K18.64 mi3.11 mi14144-6794187-4364187-43616807(Top 59%)5924(Top 48%)5924(Top 108%)
20M20.00 mi1.36 mi14482-3384408-2214408-22117778(Top 63%)6576(Top 54%)6576(Top 120%)
21M21.00 mi1.00 mi14583-1014492-844492-8415864(Top 56%)5633(Top 46%)5633(Top 103%)
35K21.75 mi0.75 mi14505+784457+354457+3513504(Top 48%)4435(Top 36%)4435(Top 81%)
23M23.00 mi1.25 mi14404+1014441+164441+1613128(Top 46%)4337(Top 35%)4337(Top 79%)
24M24.00 mi1.00 mi14475-714498-574498-5716229(Top 57%)6055(Top 50%)6055(Top 111%)
40K24.85 mi0.85 mi14531-564567-694567-6916694(Top 59%)6412(Top 52%)6412(Top 117%)
25.2M25.20 mi0.35 mi14493+384557+104557+1012634(Top 44%)4313(Top 35%)4313(Top 79%)
Finish26.22 mi1.02 mi14454+394565-84565-814351(Top 51%)5124(Top 42%)5124(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12933

Females

3410

F18-39

3410

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13694

Females

3777

F18-39

3777

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12933

Females

3410

F18-39

3410

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13423

Females

3775

F18-39

3775

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

14080

Females

4113

F18-39

4113

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14849

Females

4667

F18-39

4667

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

16807

Females

5924

F18-39

5924

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17778

Females

6576

F18-39

6576

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15864

Females

5633

F18-39

5633

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13504

Females

4435

F18-39

4435

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

13128

Females

4337

F18-39

4337

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16229

Females

6055

F18-39

6055

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16694

Females

6412

F18-39

6412

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12634

Females

4313

F18-39

4313

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14351

Females

5124

F18-39

5124

Passing Analysis

Category:
Athletes Passed
1517
Passed By
2963
Net Change
-1446
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13008
5K → 10K170488-318#13008#13326
10K → 15K284114+170#13326#13156
15K → 20K197219-22#13156#13178
20K → Half2158-37#13178#13215
Half → 25K98348-250#13215#13465
25K → 30K107786-679#13465#14144
30K → 20M47385-338#14144#14482
20M → 21M82183-101#14482#14583
21M → 35K11032+78#14583#14505
35K → 23M15049+101#14505#14404
23M → 24M43114-71#14404#14475
24M → 40K61117-56#14475#14531
40K → 25.2M5416+38#14531#14493
25.2M → Finish9354+39#14493#14454
TOTALS15172963-1446
📊

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