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BOSTON MARATHON 2025

Alia Wallenstrom

Bib: 12922•F

CA

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0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Female)
#0 / 12228
Top 2%
Age Group (F18-39)
#0 / 5469
Top 5%
Race Day Weather
50°/40°F
broken clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
21:29
Rank: #7193
Start → 5K
21:29 | 6:55/mi
10K· 6.21 mi
42:57
Rank: #7252 (-59)
5K → 10K
21:28 | 6:55/mi
15K· 9.32 mi
1:04:11
Rank: #6975 (+277)
10K → 15K
21:14 | 6:50/mi
20K· 12.43 mi
1:25:13
Rank: #6471 (+504)
15K → 20K
21:02 | 6:46/mi
Half· 13.11 mi
1:29:50
Rank: #6439 (+32)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:22
Rank: #6141 (+298)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:07:45
Rank: #5613 (+528)
25K → 30K
21:23 | 6:53/mi
20M
2:17:00
Rank: #5369 (+244)
30K → 20M
9:15 | 6:48/mi
21M
2:23:58
Rank: #5062 (+307)
20M → 21M
6:58 | 6:58/mi
35K· 21.75 mi
2:28:52
Rank: #4932 (+130)
21M → 35K
4:54 | 6:33/mi
23M
2:37:17
Rank: #4693 (+239)
35K → 23M
8:25 | 6:43/mi
24M
2:43:42
Rank: #4477 (+216)
23M → 24M
6:25 | 6:25/mi
40K· 24.85 mi
2:49:11
Rank: #4277 (+200)
24M → 40K
5:29 | 6:25/mi
25.2M
2:51:35
Rank: #4186 (+91)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:57:58
Rank: #4028 (+158)
25.2M → Finish
6:23 | 6:16/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.11 mi
Time1:29:50
Pace6:51 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:28:08
Pace6:43 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5921:296:5521:29
6:55
-
10K
6.21 mi11:12:2742:576:5521:28
6:55
0:00
15K
9.32 mi11:33:411:04:116:5321:14
6:50
-0:05
20K
12.43 mi11:54:431:25:136:5121:02
6:46
-0:04
Half
13.11 mi11:59:201:29:506:514:37
6:46
0:00
25K
15.53 mi12:15:521:46:226:5116:32
6:49
+0:03
30K
18.64 mi12:37:152:07:456:5121:23
6:53
+0:04
20M
20.00 mi12:46:302:17:006:519:15
6:48
-0:05
21M
21.00 mi12:53:282:23:586:516:58
6:58
+0:10
35K
21.75 mi12:58:222:28:526:514:54
6:33
-0:25
23M
23.00 mi13:06:472:37:176:508:25
6:43
+0:10
24M
24.00 mi13:13:122:43:426:496:25
6:25
-0:18
40K
24.85 mi13:18:412:49:116:485:29
6:25
0:00
25.2M
25.20 mi13:21:052:51:356:492:24
6:58
+0:33
Finish
26.22 mi13:27:282:57:586:486:23
6:16
-0:42

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:16 /mi

Average Pace

6:48 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:05:39

71% of race

Time at Steady Pace

52:19

29% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:50:5921:296:5521:29
6:55
#7193
10K
6.21 mi11:12:2742:576:5521:28
6:55
#7252
15K
9.32 mi11:33:411:04:116:5321:14
6:50
#6975
20K
12.43 mi11:54:431:25:136:5121:02
6:46
#6471
Half
13.11 mi11:59:201:29:506:514:37
6:46
#6439
25K
15.53 mi12:15:521:46:226:5116:32
6:49
#6141
30K
18.64 mi12:37:152:07:456:5121:23
6:53
#5613
20M
20.00 mi12:46:302:17:006:519:15
6:48
#5369
21M
21.00 mi12:53:282:23:586:516:58
6:58
#5062
35K
21.75 mi12:58:222:28:526:514:54
6:33
#4932
23M
23.00 mi13:06:472:37:176:508:25
6:43
#4693
24M
24.00 mi13:13:122:43:426:496:25
6:25
#4477
40K
24.85 mi13:18:412:49:116:485:29
6:25
#4277
25.2M
25.20 mi13:21:052:51:356:492:24
6:58
#4186
Finish
26.22 mi13:27:282:57:586:486:23
6:16
#4028
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi71937307306451(Top 23%)605(Top 5%)605(Top 11%)
10K6.21 mi3.10 mi7252-59757-27757-277309(Top 26%)774(Top 6%)774(Top 14%)
15K9.32 mi3.11 mi6975+277694+63694+636451(Top 23%)605(Top 5%)605(Top 11%)
20K12.43 mi3.11 mi6471+504601+93601+935026(Top 18%)376(Top 3%)376(Top 7%)
Half13.11 mi0.68 mi6439+32596+5596+55905(Top 21%)503(Top 4%)503(Top 9%)
25K15.53 mi2.42 mi6141+298560+36560+365035(Top 18%)400(Top 3%)400(Top 7%)
30K18.64 mi3.11 mi5613+528469+91469+913983(Top 14%)302(Top 2%)302(Top 6%)
20M20.00 mi1.36 mi5369+244440+29440+293009(Top 11%)200(Top 2%)200(Top 4%)
21M21.00 mi1.00 mi5062+307397+43397+432158(Top 8%)133(Top 1%)133(Top 2%)
35K21.75 mi0.75 mi4932+130385+12385+122770(Top 10%)206(Top 2%)206(Top 4%)
23M23.00 mi1.25 mi4693+239360+25360+252382(Top 8%)160(Top 1%)160(Top 3%)
24M24.00 mi1.00 mi4477+216337+23337+231755(Top 6%)114(Top 0.9%)114(Top 2%)
40K24.85 mi0.85 mi4277+200319+18319+181339(Top 5%)90(Top 0.7%)90(Top 2%)
25.2M25.20 mi0.35 mi4186+91311+8311+81426(Top 5%)116(Top 0.9%)116(Top 2%)
Finish26.22 mi1.02 mi4028+158294+17294+171782(Top 6%)128(Top 1%)128(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6451

Females

605

F18-39

605

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7309

Females

774

F18-39

774

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6451

Females

605

F18-39

605

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5026

Females

376

F18-39

376

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5905

Females

503

F18-39

503

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5035

Females

400

F18-39

400

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3983

Females

302

F18-39

302

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3009

Females

200

F18-39

200

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2158

Females

133

F18-39

133

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2770

Females

206

F18-39

206

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2382

Females

160

F18-39

160

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1755

Females

114

F18-39

114

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1339

Females

90

F18-39

90

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1426

Females

116

F18-39

116

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1782

Females

128

F18-39

128

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3478
Passed By
313
Net Change
+3165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7193
5K → 10K179238-59#7193#7252
10K → 15K30225+277#7252#6975
15K → 20K5106+504#6975#6471
20K → Half408+32#6471#6439
Half → 25K31517+298#6439#6141
25K → 30K5346+528#6141#5613
30K → 20M2451+244#5613#5369
20M → 21M3070+307#5369#5062
21M → 35K1366+130#5062#4932
35K → 23M2412+239#4932#4693
23M → 24M2171+216#4693#4477
24M → 40K2000+200#4477#4277
40K → 25.2M910+91#4277#4186
25.2M → Finish1613+158#4186#4028
TOTALS3478313+3165
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing