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BOSTON MARATHON 2025

Lauren Alexander

Bib: 13169•F

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 13%
Division (F18-39)
#0 / 5469
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:41
Rank: #10389
Start → 5K
22:41 | 7:18/mi
10K· 6.21 mi
45:09
Rank: #10055 (+334)
5K → 10K
22:28 | 7:14/mi
15K· 9.32 mi
1:07:36
Rank: #9781 (+274)
10K → 15K
22:27 | 7:14/mi
20K· 12.43 mi
1:30:07
Rank: #9430 (+351)
15K → 20K
22:31 | 7:15/mi
Half· 13.11 mi
1:35:04
Rank: #9420 (+10)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:52:54
Rank: #9300 (+120)
Half → 25K
17:50 | 7:21/mi
30K· 18.64 mi
2:16:39
Rank: #9111 (+189)
25K → 30K
23:45 | 7:39/mi
20M
2:27:08
Rank: #9020 (+91)
30K → 20M
10:29 | 7:43/mi
21M
2:35:16
Rank: #8935 (+85)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:40:59
Rank: #8928 (+7)
21M → 35K
5:43 | 7:38/mi
23M
2:50:52
Rank: #8900 (+28)
35K → 23M
9:53 | 7:54/mi
24M
2:58:36
Rank: #8886 (+14)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
3:05:10
Rank: #8811 (+75)
24M → 40K
6:34 | 7:41/mi
25.2M
3:08:02
Rank: #8766 (+45)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:15:31
Rank: #8719 (+47)
25.2M → Finish
7:29 | 7:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:04
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:40:27
Pace7:40 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0922:417:1822:41
7:18
-
10K
6.21 mi11:14:3745:097:1622:28
7:14
-0:04
15K
9.32 mi11:37:041:07:367:1522:27
7:14
0:00
20K
12.43 mi11:59:351:30:077:1522:31
7:15
+0:01
Half
13.11 mi12:04:321:35:047:154:57
7:15
0:00
25K
15.53 mi12:22:221:52:547:1617:50
7:21
+0:06
30K
18.64 mi12:46:072:16:397:2023:45
7:39
+0:18
20M
20.00 mi12:56:362:27:087:2110:29
7:43
+0:04
21M
21.00 mi13:04:442:35:167:248:08
8:08
+0:25
35K
21.75 mi13:10:272:40:597:245:43
7:38
-0:30
23M
23.00 mi13:20:202:50:527:269:53
7:54
+0:16
24M
24.00 mi13:28:042:58:367:277:44
7:44
-0:10
40K
24.85 mi13:34:383:05:107:276:34
7:41
-0:03
25.2M
25.20 mi13:37:303:08:027:282:52
8:19
+0:38
Finish
26.22 mi13:44:593:15:317:287:29
7:21
-0:58

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

7:14 /mi

Average Pace

7:28 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:31

94% of race

Time at Steady Pace

11:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:52:0922:417:1822:41
7:18
#10389
10K
6.21 mi11:14:3745:097:1622:28
7:14
#10055
15K
9.32 mi11:37:041:07:367:1522:27
7:14
#9781
20K
12.43 mi11:59:351:30:077:1522:31
7:15
#9430
Half
13.11 mi12:04:321:35:047:154:57
7:15
#9420
25K
15.53 mi12:22:221:52:547:1617:50
7:21
#9300
30K
18.64 mi12:46:072:16:397:2023:45
7:39
#9111
20M
20.00 mi12:56:362:27:087:2110:29
7:43
#9020
21M
21.00 mi13:04:442:35:167:248:08
8:08
#8935
35K
21.75 mi13:10:272:40:597:245:43
7:38
#8928
23M
23.00 mi13:20:202:50:527:269:53
7:54
#8900
24M
24.00 mi13:28:042:58:367:277:44
7:44
#8886
40K
24.85 mi13:34:383:05:107:276:34
7:41
#8811
25.2M
25.20 mi13:37:303:08:027:282:52
8:19
#8766
Finish
26.22 mi13:44:593:15:317:287:29
7:21
#8719
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10389198319839349(Top 33%)1584(Top 13%)1584(Top 29%)
10K6.21 mi3.10 mi10055+3341835+1481835+1489766(Top 34%)1720(Top 14%)1720(Top 31%)
15K9.32 mi3.11 mi9781+2741734+1011734+1019349(Top 33%)1584(Top 13%)1584(Top 29%)
20K12.43 mi3.11 mi9430+3511609+1251609+1258619(Top 30%)1363(Top 11%)1363(Top 25%)
Half13.11 mi0.68 mi9420+101614-51614-59658(Top 34%)1786(Top 15%)1786(Top 33%)
25K15.53 mi2.42 mi9300+1201585+291585+298802(Top 31%)1553(Top 13%)1553(Top 28%)
30K18.64 mi3.11 mi9111+1891557+281557+288795(Top 31%)1742(Top 14%)1742(Top 32%)
20M20.00 mi1.36 mi9020+911547+101547+108466(Top 30%)1735(Top 14%)1735(Top 32%)
21M21.00 mi1.00 mi8935+851548-11548-18185(Top 29%)1800(Top 15%)1800(Top 33%)
35K21.75 mi0.75 mi8928+71567-191567-199649(Top 34%)2424(Top 20%)2424(Top 44%)
23M23.00 mi1.25 mi8900+281600-331600-339255(Top 33%)2371(Top 19%)2371(Top 43%)
24M24.00 mi1.00 mi8886+141626-261626-269353(Top 33%)2486(Top 20%)2486(Top 45%)
40K24.85 mi0.85 mi8811+751637-111637-117981(Top 28%)1973(Top 16%)1973(Top 36%)
25.2M25.20 mi0.35 mi8766+451634+31634+37770(Top 27%)1959(Top 16%)1959(Top 36%)
Finish26.22 mi1.02 mi8719+471639-51639-58099(Top 29%)2107(Top 17%)2107(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9349

Females

1584

F18-39

1584

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9766

Females

1720

F18-39

1720

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9349

Females

1584

F18-39

1584

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8619

Females

1363

F18-39

1363

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9658

Females

1786

F18-39

1786

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8802

Females

1553

F18-39

1553

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8795

Females

1742

F18-39

1742

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8466

Females

1735

F18-39

1735

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8185

Females

1800

F18-39

1800

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9649

Females

2424

F18-39

2424

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9255

Females

2371

F18-39

2371

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9353

Females

2486

F18-39

2486

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7981

Females

1973

F18-39

1973

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7770

Females

1959

F18-39

1959

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8099

Females

2107

F18-39

2107

Passing Analysis

Category:
Athletes Passed
2544*
Passed By
874
Net Change
+1670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10389
5K → 10K457123+334#10389#10055
10K → 15K327*53+274#10055#9781
15K → 20K38332+351#9781#9430
20K → Half3323+10#9430#9420
Half → 25K20383+120#9420#9300
25K → 30K311122+189#9300#9111
30K → 20M14655+91#9111#9020
20M → 21M13752+85#9020#8935
21M → 35K7669+7#8935#8928
35K → 23M11890+28#8928#8900
23M → 24M8268+14#8900#8886
24M → 40K10833+75#8886#8811
40K → 25.2M6520+45#8811#8766
25.2M → Finish9851+47#8766#8719
TOTALS2544*874+1670

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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