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BOSTON MARATHON 2025

Alexandra Guerra

Bib: 16520•F

AB

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Division (F18-39)
#0 / 5469
Top 41%
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
7:25/mi
23:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
46:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:09:41
↑ 67↓ 78
20K· 12.43 mi
7:30/mi
1:32:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:38:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:56:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:21:04
↑ 181↓ 1480.2%
20M
8:12/mi
2:32:13
↑ 64↓ 500.2%
21M
8:40/mi
2:40:53
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
2:46:53
↑ 17↓ 861.7%
23M
8:22/mi
2:57:21
↑ 23↓ 630.6%
24M
8:14/mi
3:05:35
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:12:40
↓ 200.3%
25.2M
9:17/mi
3:15:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:24:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:02
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:46:09
Pace8:06 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0023:047:2523:04
7:25
-
10K
6.21 mi11:20:3446:387:3023:34
7:35
+0:10
15K
9.32 mi11:43:371:09:417:2923:03
7:25
-0:10
20K
12.43 mi12:06:551:32:597:2923:18
7:30
+0:05
Half
13.11 mi12:11:581:38:027:295:03
7:24
-0:06
25K
15.53 mi12:30:301:56:347:3018:32
7:39
+0:15
30K
18.64 mi12:55:002:21:047:3424:30
7:53
+0:14
20M
20.00 mi13:06:092:32:137:3711:09
8:12
+0:19
21M
21.00 mi13:14:492:40:537:408:40
8:40
+0:28
35K
21.75 mi13:20:492:46:537:406:00
8:01
-0:39
23M
23.00 mi13:31:172:57:217:4310:28
8:22
+0:21
24M
24.00 mi13:39:313:05:357:448:14
8:14
-0:08
40K
24.85 mi13:46:363:12:407:457:05
8:17
+0:03
25.2M
25.20 mi13:49:483:15:527:463:12
9:17
+1:00
Finish
26.22 mi13:58:073:24:117:488:19
8:10
-1:07

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

7:24 /mi

Average Pace

7:48 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:34

57% of race

Time at Steady Pace

58:12

29% of race

Time at Slower Pace

29:25

14% of race

Average Pace: 7:47 /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 mi10:57:0023:047:2523:04
7:25
#11588
10K
6.21 mi11:20:3446:387:3023:34
7:35
#12181
15K
9.32 mi11:43:371:09:417:2923:03
7:25
#11776
20K
12.43 mi12:06:551:32:597:2923:18
7:30
#11492
Half
13.11 mi12:11:581:38:027:295:03
7:24
#11464
25K
15.53 mi12:30:301:56:347:3018:32
7:39
#11365
30K
18.64 mi12:55:002:21:047:3424:30
7:53
#11186
20M
20.00 mi13:06:092:32:137:3711:09
8:12
#11176
21M
21.00 mi13:14:492:40:537:408:40
8:40
#11161
35K
21.75 mi13:20:492:46:537:406:00
8:01
#11182
23M
23.00 mi13:31:172:57:217:4310:28
8:22
#11240
24M
24.00 mi13:39:313:05:357:448:14
8:14
#11266
40K
24.85 mi13:46:363:12:407:457:05
8:17
#11274
25.2M
25.20 mi13:49:483:15:527:463:12
9:17
#11307
Finish
26.22 mi13:58:073:24:117:488:19
8:10
#11403
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115882571257111063(Top 39%)2408(Top 20%)2408(Top 44%)
10K6.21 mi3.10 mi12181-5932902-3312902-33112897(Top 45%)3313(Top 27%)3313(Top 61%)
15K9.32 mi3.11 mi11776+4052702+2002702+20011063(Top 39%)2408(Top 20%)2408(Top 44%)
20K12.43 mi3.11 mi11492+2842607+952607+9510787(Top 38%)2365(Top 19%)2365(Top 43%)
Half13.11 mi0.68 mi11464+282590+172590+1710983(Top 39%)2425(Top 20%)2425(Top 44%)
25K15.53 mi2.42 mi11365+992574+162574+1611110(Top 39%)2643(Top 22%)2643(Top 48%)
30K18.64 mi3.11 mi11186+1792562+122562+1210546(Top 37%)2564(Top 21%)2564(Top 47%)
20M20.00 mi1.36 mi11176+102597-352597-3511849(Top 42%)3367(Top 28%)3367(Top 62%)
21M21.00 mi1.00 mi11161+152638-412638-4111489(Top 40%)3344(Top 27%)3344(Top 61%)
35K21.75 mi0.75 mi11182-212666-282666-2812404(Top 44%)3839(Top 31%)3839(Top 70%)
23M23.00 mi1.25 mi11240-582742-762742-7612431(Top 44%)3961(Top 32%)3961(Top 72%)
24M24.00 mi1.00 mi11266-262802-602802-6012814(Top 45%)4214(Top 34%)4214(Top 77%)
40K24.85 mi0.85 mi11274-82834-322834-3212071(Top 42%)3944(Top 32%)3944(Top 72%)
25.2M25.20 mi0.35 mi11307-332880-462880-4613363(Top 47%)4672(Top 38%)4672(Top 85%)
Finish26.22 mi1.02 mi11403-962956-762956-7614016(Top 49%)4947(Top 40%)4947(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

11063

Females

2408

F18-39

2408

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12897

Females

3313

F18-39

3313

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

11063

Females

2408

F18-39

2408

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10787

Females

2365

F18-39

2365

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10983

Females

2425

F18-39

2425

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11110

Females

2643

F18-39

2643

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10546

Females

2564

F18-39

2564

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11849

Females

3367

F18-39

3367

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11489

Females

3344

F18-39

3344

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12404

Females

3839

F18-39

3839

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12431

Females

3961

F18-39

3961

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12814

Females

4214

F18-39

4214

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

12071

Females

3944

F18-39

3944

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13363

Females

4672

F18-39

4672

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

14016

Females

4947

F18-39

4947

Passing Analysis

Category:
Athletes Passed
2024
Passed By
1839
Net Change
+185
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11588
5K → 10K77670-593#11588#12181
10K → 15K44338+405#12181#11776
15K → 20K34965+284#11776#11492
20K → Half4921+28#11492#11464
Half → 25K19798+99#11464#11365
25K → 30K319140+179#11365#11186
30K → 20M117107+10#11186#11176
20M → 21M10994+15#11176#11161
21M → 35K4768-21#11161#11182
35K → 23M92150-58#11182#11240
23M → 24M81107-26#11240#11266
24M → 40K6674-8#11266#11274
40K → 25.2M2962-33#11274#11307
25.2M → Finish49145-96#11307#11403
TOTALS20241839+185
📊

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