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BOSTON MARATHON 2025

Alexandra Asselta

Bib: 27724•F

FL

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
9:23/mi
29:08
↑ 97↓ 3451.5%
10K· 6.21 mi
9:26/mi
58:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:26/mi
1:27:46
↑ 67↓ 78
20K· 12.43 mi
9:38/mi
1:57:43
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
2:04:00
↑ 19↓ 370.5%
25K· 15.53 mi
9:39/mi
2:27:23
↑ 66↓ 880.2%
30K· 18.64 mi
9:54/mi
2:58:07
↑ 181↓ 1480.2%
20M
10:53/mi
3:12:54
↑ 64↓ 500.2%
21M
10:19/mi
3:23:13
↑ 106↓ 241.6%
35K· 21.75 mi
10:08/mi
3:30:48
↑ 17↓ 861.7%
23M
10:19/mi
3:43:43
↑ 23↓ 630.6%
24M
10:00/mi
3:53:43
↓ 821.3%
40K· 24.85 mi
10:16/mi
4:02:30
↓ 200.3%
25.2M
11:21/mi
4:06:25
↑ 13↓ 160.2%
Finish· 26.22 mi
9:46/mi
4:16:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:00
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:12:22
Pace10:06 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:3629:089:2329:08
9:23
-
10K
6.21 mi12:24:5458:269:2429:18
9:26
+0:03
15K
9.32 mi12:54:141:27:469:2529:20
9:26
0:00
20K
12.43 mi13:24:111:57:439:2829:57
9:38
+0:12
Half
13.11 mi13:30:282:04:009:286:17
9:13
-0:25
25K
15.53 mi13:53:512:27:239:2923:23
9:39
+0:26
30K
18.64 mi14:24:352:58:079:3330:44
9:54
+0:15
20M
20.00 mi14:39:223:12:549:3914:47
10:53
+0:59
21M
21.00 mi14:49:413:23:139:4110:19
10:19
-0:34
35K
21.75 mi14:57:163:30:489:427:35
10:08
-0:11
23M
23.00 mi15:10:113:43:439:4412:55
10:19
+0:11
24M
24.00 mi15:20:113:53:439:4410:00
10:00
-0:19
40K
24.85 mi15:28:584:02:309:458:47
10:16
+0:16
25.2M
25.20 mi15:32:534:06:259:473:55
11:21
+1:05
Finish
26.22 mi15:42:504:16:229:479:57
9:46
-1:35

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

9:13 /mi

Average Pace

9:47 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:03

37% of race

Time at Steady Pace

1:51:36

44% of race

Time at Slower Pace

50:43

20% of race

Average Pace: 9:47 /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 mi11:55:3629:089:2329:08
9:23
#23831
10K
6.21 mi12:24:5458:269:2429:18
9:26
#23898
15K
9.32 mi12:54:141:27:469:2529:20
9:26
#23797
20K
12.43 mi13:24:111:57:439:2829:57
9:38
#23664
Half
13.11 mi13:30:282:04:009:286:17
9:13
#23623
25K
15.53 mi13:53:512:27:239:2923:23
9:39
#23384
30K
18.64 mi14:24:352:58:079:3330:44
9:54
#22974
20M
20.00 mi14:39:223:12:549:3914:47
10:53
#22979
21M
21.00 mi14:49:413:23:139:4110:19
10:19
#22811
35K
21.75 mi14:57:163:30:489:427:35
10:08
#22776
23M
23.00 mi15:10:113:43:439:4412:55
10:19
#22678
24M
24.00 mi15:20:113:53:439:4410:00
10:00
#22600
40K
24.85 mi15:28:584:02:309:458:47
10:16
#22550
25.2M
25.20 mi15:32:534:06:259:473:55
11:21
#22547
Finish
26.22 mi15:42:504:16:229:479:57
9:46
#22516
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi238319605960523581(Top 83%)9423(Top 77%)9423(Top 172%)
10K6.21 mi3.10 mi23898-679631-269631-2623929(Top 84%)9642(Top 79%)9642(Top 176%)
15K9.32 mi3.11 mi23797+1019571+609571+6023581(Top 83%)9423(Top 77%)9423(Top 172%)
20K12.43 mi3.11 mi23664+1339495+769495+7623331(Top 82%)9323(Top 76%)9323(Top 170%)
Half13.11 mi0.68 mi23623+419475+209475+2022666(Top 80%)8970(Top 73%)8970(Top 164%)
25K15.53 mi2.42 mi23384+2399351+1249351+12422352(Top 79%)8849(Top 72%)8849(Top 162%)
30K18.64 mi3.11 mi22974+4109172+1799172+17921284(Top 75%)8394(Top 69%)8394(Top 153%)
20M20.00 mi1.36 mi22979-59200-289200-2823344(Top 82%)9596(Top 78%)9596(Top 175%)
21M21.00 mi1.00 mi22811+1689125+759125+7519457(Top 69%)7598(Top 62%)7598(Top 139%)
35K21.75 mi0.75 mi22776+359117+89117+822282(Top 78%)9181(Top 75%)9181(Top 168%)
23M23.00 mi1.25 mi22678+989090+279090+2721494(Top 76%)8814(Top 72%)8814(Top 161%)
24M24.00 mi1.00 mi22600+789073+179073+1721392(Top 75%)8805(Top 72%)8805(Top 161%)
40K24.85 mi0.85 mi22550+509059+149059+1421316(Top 75%)8830(Top 72%)8830(Top 161%)
25.2M25.20 mi0.35 mi22547+39063-49063-421704(Top 76%)9010(Top 74%)9010(Top 165%)
Finish26.22 mi1.02 mi22516+319069-69069-622156(Top 78%)9243(Top 76%)9243(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23581

Females

9423

F18-39

9423

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23929

Females

9642

F18-39

9642

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23581

Females

9423

F18-39

9423

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23331

Females

9323

F18-39

9323

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22666

Females

8970

F18-39

8970

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22352

Females

8849

F18-39

8849

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21284

Females

8394

F18-39

8394

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23344

Females

9596

F18-39

9596

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19457

Females

7598

F18-39

7598

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22282

Females

9181

F18-39

9181

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21494

Females

8814

F18-39

8814

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21392

Females

8805

F18-39

8805

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21316

Females

8830

F18-39

8830

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21704

Females

9010

F18-39

9010

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22156

Females

9243

F18-39

9243

Passing Analysis

Category:
Athletes Passed
2051
Passed By
736
Net Change
+1315
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23831
5K → 10K218285-67#23831#23898
10K → 15K204103+101#23898#23797
15K → 20K20168+133#23797#23664
20K → Half454+41#23664#23623
Half → 25K26223+239#23623#23384
25K → 30K43020+410#23384#22974
30K → 20M7681-5#22974#22979
20M → 21M1746+168#22979#22811
21M → 35K6328+35#22811#22776
35K → 23M12325+98#22776#22678
23M → 24M9921+78#22678#22600
24M → 40K6818+50#22600#22550
40K → 25.2M1916+3#22550#22547
25.2M → Finish6938+31#22547#22516
TOTALS2051736+1315
📊

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