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BOSTON MARATHON 2025

Alexandra Loblundo

Bib: 16025•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 28%
Division (F18-39)
#0 / 5469
Top 47%
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
7:49/mi
24:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:33
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:12:45
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:37:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
2:01:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:07/mi
2:26:31
↑ 181↓ 1480.2%
20M
8:09/mi
2:37:36
↑ 64↓ 500.2%
21M
8:31/mi
2:46:07
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:51:58
↑ 17↓ 861.7%
23M
8:08/mi
3:02:09
↑ 23↓ 630.6%
24M
7:50/mi
3:09:59
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:16:42
↓ 200.3%
25.2M
8:39/mi
3:19:41
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:27:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:22
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:45:07
Pace8:01 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:3224:177:4924:17
7:49
-
10K
6.21 mi11:22:4848:337:4924:16
7:49
0:00
15K
9.32 mi11:47:001:12:457:4824:12
7:47
-0:02
20K
12.43 mi12:11:211:37:067:4924:21
7:50
+0:03
Half
13.11 mi12:16:371:42:227:495:16
7:43
-0:07
25K
15.53 mi12:35:322:01:177:4818:55
7:48
+0:05
30K
18.64 mi13:00:462:26:317:5225:14
8:07
+0:19
20M
20.00 mi13:11:512:37:367:5311:05
8:09
+0:02
21M
21.00 mi13:20:222:46:077:558:31
8:31
+0:22
35K
21.75 mi13:26:132:51:587:545:51
7:49
-0:42
23M
23.00 mi13:36:243:02:097:5510:11
8:08
+0:19
24M
24.00 mi13:44:143:09:597:557:50
7:50
-0:18
40K
24.85 mi13:50:573:16:427:556:43
7:51
+0:01
25.2M
25.20 mi13:53:563:19:417:552:59
8:39
+0:48
Finish
26.22 mi14:01:443:27:297:557:48
7:39
-1:00

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

7:39 /mi

Average Pace

7:55 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:59

94% of race

Time at Steady Pace

11:30

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi10:58:3224:177:4924:17
7:49
#14961
10K
6.21 mi11:22:4848:337:4924:16
7:49
#14898
15K
9.32 mi11:47:001:12:457:4824:12
7:47
#14665
20K
12.43 mi12:11:211:37:067:4924:21
7:50
#14372
Half
13.11 mi12:16:371:42:227:495:16
7:43
#14311
25K
15.53 mi12:35:322:01:177:4818:55
7:48
#13950
30K
18.64 mi13:00:462:26:317:5225:14
8:07
#13570
20M
20.00 mi13:11:512:37:367:5311:05
8:09
#13372
21M
21.00 mi13:20:222:46:077:558:31
8:31
#13165
35K
21.75 mi13:26:132:51:587:545:51
7:49
#13082
23M
23.00 mi13:36:243:02:097:5510:11
8:08
#12915
24M
24.00 mi13:44:143:09:597:557:50
7:50
#12768
40K
24.85 mi13:50:573:16:427:556:43
7:51
#12614
25.2M
25.20 mi13:53:563:19:417:552:59
8:39
#12539
Finish
26.22 mi14:01:443:27:297:557:48
7:39
#12444
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149614502450214284(Top 50%)4187(Top 34%)4187(Top 77%)
10K6.21 mi3.10 mi14898+634492+104492+1014925(Top 53%)4484(Top 37%)4484(Top 82%)
15K9.32 mi3.11 mi14665+2334351+1414351+14114284(Top 50%)4187(Top 34%)4187(Top 77%)
20K12.43 mi3.11 mi14372+2934218+1334218+13313575(Top 48%)3857(Top 32%)3857(Top 71%)
Half13.11 mi0.68 mi14311+614185+334185+3313595(Top 48%)3817(Top 31%)3817(Top 70%)
25K15.53 mi2.42 mi13950+3614015+1704015+17012395(Top 44%)3335(Top 27%)3335(Top 61%)
30K18.64 mi3.11 mi13570+3803860+1553860+15512256(Top 43%)3418(Top 28%)3418(Top 62%)
20M20.00 mi1.36 mi13372+1983788+723788+7211534(Top 41%)3203(Top 26%)3203(Top 59%)
21M21.00 mi1.00 mi13165+2073698+903698+9010615(Top 37%)2918(Top 24%)2918(Top 53%)
35K21.75 mi0.75 mi13082+833670+283670+2811027(Top 39%)3125(Top 26%)3125(Top 57%)
23M23.00 mi1.25 mi12915+1673615+553615+5510969(Top 39%)3215(Top 26%)3215(Top 59%)
24M24.00 mi1.00 mi12768+1473566+493566+4910109(Top 36%)2873(Top 23%)2873(Top 53%)
40K24.85 mi0.85 mi12614+1543512+543512+549226(Top 32%)2570(Top 21%)2570(Top 47%)
25.2M25.20 mi0.35 mi12539+753493+193493+199808(Top 35%)2934(Top 24%)2934(Top 54%)
Finish26.22 mi1.02 mi12444+953469+243469+2410385(Top 37%)3171(Top 26%)3171(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14284

Females

4187

F18-39

4187

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14925

Females

4484

F18-39

4484

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14284

Females

4187

F18-39

4187

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13575

Females

3857

F18-39

3857

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13595

Females

3817

F18-39

3817

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12395

Females

3335

F18-39

3335

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

12256

Females

3418

F18-39

3418

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11534

Females

3203

F18-39

3203

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10615

Females

2918

F18-39

2918

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11027

Females

3125

F18-39

3125

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10969

Females

3215

F18-39

3215

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10109

Females

2873

F18-39

2873

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9226

Females

2570

F18-39

2570

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9808

Females

2934

F18-39

2934

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10385

Females

3171

F18-39

3171

Passing Analysis

Category:
Athletes Passed
3167
Passed By
650
Net Change
+2517
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14961
5K → 10K314251+63#14961#14898
10K → 15K32390+233#14898#14665
15K → 20K36471+293#14665#14372
20K → Half7110+61#14372#14311
Half → 25K37817+361#14311#13950
25K → 30K43959+380#13950#13570
30K → 20M22830+198#13570#13372
20M → 21M22316+207#13372#13165
21M → 35K9714+83#13165#13082
35K → 23M19629+167#13082#12915
23M → 24M16518+147#12915#12768
24M → 40K16713+154#12768#12614
40K → 25.2M805+75#12614#12539
25.2M → Finish12227+95#12539#12444
TOTALS3167650+2517
📊

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