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BOSTON MARATHON 2025

Sydney Lerda

Bib: 32306•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Female)
#0 / 12228
Top 31%
Division (F18-39)
#0 / 5469
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:37
Rank: #15940
Start → 5K
24:37 | 7:55/mi
10K· 6.21 mi
49:25
Rank: #16124 (-184)
5K → 10K
24:48 | 7:59/mi
15K· 9.32 mi
1:14:20
Rank: #16122 (+2)
10K → 15K
24:55 | 8:01/mi
20K· 12.43 mi
1:39:03
Rank: #15712 (+410)
15K → 20K
24:43 | 7:57/mi
Half· 13.11 mi
1:44:22
Rank: #15635 (+77)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:03:34
Rank: #15195 (+440)
Half → 25K
19:12 | 7:55/mi
30K· 18.64 mi
2:28:02
Rank: #14206 (+989)
25K → 30K
24:28 | 7:53/mi
20M
2:38:38
Rank: #13765 (+441)
30K → 20M
10:36 | 7:48/mi
21M
2:46:48
Rank: #13420 (+345)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:52:26
Rank: #13241 (+179)
21M → 35K
5:38 | 7:32/mi
23M
3:02:37
Rank: #13075 (+166)
35K → 23M
10:11 | 8:08/mi
24M
3:10:38
Rank: #12986 (+89)
23M → 24M
8:01 | 8:01/mi
40K· 24.85 mi
3:18:13
Rank: #13082 (-96)
24M → 40K
7:35 | 8:52/mi
25.2M
3:21:21
Rank: #13071 (+11)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:29:19
Rank: #13013 (+58)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:44:22
Pace7:58 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:44:57
Pace8:00 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5824:377:5524:37
7:55
-
10K
6.21 mi12:09:4649:257:5724:48
7:59
+0:04
15K
9.32 mi12:34:411:14:207:5924:55
8:01
+0:02
20K
12.43 mi12:59:241:39:037:5824:43
7:57
-0:04
Half
13.11 mi13:04:431:44:227:585:19
7:48
-0:09
25K
15.53 mi13:23:552:03:347:5719:12
7:55
+0:07
30K
18.64 mi13:48:232:28:027:5624:28
7:53
-0:02
20M
20.00 mi13:58:592:38:387:5610:36
7:48
-0:05
21M
21.00 mi14:07:092:46:487:578:10
8:10
+0:22
35K
21.75 mi14:12:472:52:267:565:38
7:32
-0:38
23M
23.00 mi14:22:583:02:377:5610:11
8:08
+0:36
24M
24.00 mi14:30:593:10:387:578:01
8:01
-0:07
40K
24.85 mi14:38:343:18:137:587:35
8:52
+0:51
25.2M
25.20 mi14:41:423:21:217:593:08
9:05
+0:13
Finish
26.22 mi14:49:403:29:197:597:58
7:49
-1:16

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

7:32 /mi

Average Pace

7:59 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:38

3% of race

Time at Steady Pace

3:04:48

88% of race

Time at Slower Pace

18:53

9% of race

Average Pace: 7:59 /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 mi11:44:5824:377:5524:37
7:55
#15940
10K
6.21 mi12:09:4649:257:5724:48
7:59
#16124
15K
9.32 mi12:34:411:14:207:5924:55
8:01
#16122
20K
12.43 mi12:59:241:39:037:5824:43
7:57
#15712
Half
13.11 mi13:04:431:44:227:585:19
7:48
#15635
25K
15.53 mi13:23:552:03:347:5719:12
7:55
#15195
30K
18.64 mi13:48:232:28:027:5624:28
7:53
#14206
20M
20.00 mi13:58:592:38:387:5610:36
7:48
#13765
21M
21.00 mi14:07:092:46:487:578:10
8:10
#13420
35K
21.75 mi14:12:472:52:267:565:38
7:32
#13241
23M
23.00 mi14:22:583:02:377:5610:11
8:08
#13075
24M
24.00 mi14:30:593:10:387:578:01
8:01
#12986
40K
24.85 mi14:38:343:18:137:587:35
8:52
#13082
25.2M
25.20 mi14:41:423:21:217:593:08
9:05
#13071
Finish
26.22 mi14:49:403:29:197:597:58
7:49
#13013
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi159405106510616198(Top 57%)5248(Top 43%)5248(Top 96%)
10K6.21 mi3.10 mi16124-1845216-1105216-11016340(Top 58%)5325(Top 44%)5325(Top 97%)
15K9.32 mi3.11 mi16122+25210+65210+616198(Top 57%)5248(Top 43%)5248(Top 96%)
20K12.43 mi3.11 mi15712+4104988+2224988+22214576(Top 51%)4409(Top 36%)4409(Top 81%)
Half13.11 mi0.68 mi15635+774953+354953+3514233(Top 50%)4184(Top 34%)4184(Top 77%)
25K15.53 mi2.42 mi15195+4404718+2354718+23513258(Top 47%)3801(Top 31%)3801(Top 70%)
30K18.64 mi3.11 mi14206+9894225+4934225+49310477(Top 37%)2535(Top 21%)2535(Top 46%)
20M20.00 mi1.36 mi13765+4414002+2234002+2239071(Top 32%)2026(Top 17%)2026(Top 37%)
21M21.00 mi1.00 mi13420+3453847+1553847+1558421(Top 30%)1917(Top 16%)1917(Top 35%)
35K21.75 mi0.75 mi13241+1793762+853762+858917(Top 31%)2111(Top 17%)2111(Top 39%)
23M23.00 mi1.25 mi13075+1663714+483714+4810975(Top 39%)3221(Top 26%)3221(Top 59%)
24M24.00 mi1.00 mi12986+893696+183696+1811392(Top 40%)3515(Top 29%)3515(Top 64%)
40K24.85 mi0.85 mi13082-963776-803776-8015584(Top 55%)5830(Top 48%)5830(Top 107%)
25.2M25.20 mi0.35 mi13071+113782-63782-612337(Top 43%)4136(Top 34%)4136(Top 76%)
Finish26.22 mi1.02 mi13013+583767+153767+1511594(Top 41%)3747(Top 31%)3747(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16198

Females

5248

F18-39

5248

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

16340

Females

5325

F18-39

5325

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16198

Females

5248

F18-39

5248

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14576

Females

4409

F18-39

4409

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

14233

Females

4184

F18-39

4184

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

13258

Females

3801

F18-39

3801

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10477

Females

2535

F18-39

2535

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9071

Females

2026

F18-39

2026

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8421

Females

1917

F18-39

1917

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8917

Females

2111

F18-39

2111

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10975

Females

3221

F18-39

3221

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

11392

Females

3515

F18-39

3515

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15584

Females

5830

F18-39

5830

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12337

Females

4136

F18-39

4136

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11594

Females

3747

F18-39

3747

Passing Analysis

Category:
Athletes Passed
3879
Passed By
952
Net Change
+2927
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15940
5K → 10K243427-184#15940#16124
10K → 15K208206+2#16124#16122
15K → 20K44131+410#16122#15712
20K → Half814+77#15712#15635
Half → 25K45212+440#15635#15195
25K → 30K9912+989#15195#14206
30K → 20M4410+441#14206#13765
20M → 21M3461+345#13765#13420
21M → 35K1823+179#13420#13241
35K → 23M20337+166#13241#13075
23M → 24M11627+89#13075#12986
24M → 40K49145-96#12986#13082
40K → 25.2M3625+11#13082#13071
25.2M → Finish9032+58#13071#13013
TOTALS3879952+2927
📊

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