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BOSTON MARATHON 2025

Sydney Niekamp

Bib: 14463•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:45
Rank: #7842
Start → 5K
21:45 | 7:00/mi
10K· 6.21 mi
43:15
Rank: #7601 (+241)
5K → 10K
21:30 | 6:55/mi
15K· 9.32 mi
1:05:03
Rank: #7619 (-18)
10K → 15K
21:48 | 7:01/mi
20K· 12.43 mi
1:27:19
Rank: #7671 (-52)
15K → 20K
22:16 | 7:10/mi
Half· 13.11 mi
1:32:11
Rank: #7695 (-24)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:49:53
Rank: #7750 (-55)
Half → 25K
17:42 | 7:18/mi
30K· 18.64 mi
2:14:47
Rank: #8266 (-516)
25K → 30K
24:54 | 8:01/mi
20M
2:26:28
Rank: #8732 (-466)
30K → 20M
11:41 | 8:36/mi
21M
2:35:55
Rank: #9197 (-465)
20M → 21M
9:27 | 9:27/mi
35K· 21.75 mi
2:42:02
Rank: #9345 (-148)
21M → 35K
6:07 | 8:11/mi
23M
2:51:56
Rank: #9289 (+56)
35K → 23M
9:54 | 7:54/mi
24M
2:59:51
Rank: #9331 (-42)
23M → 24M
7:55 | 7:55/mi
40K· 24.85 mi
3:06:39
Rank: #9325 (+6)
24M → 40K
6:48 | 7:57/mi
25.2M
3:09:31
Rank: #9272 (+53)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:16:56
Rank: #9186 (+86)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:11
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:44:45
Pace7:59 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1121:457:0021:45
7:00
-
10K
6.21 mi11:13:4143:156:5821:30
6:55
-0:05
15K
9.32 mi11:35:291:05:036:5921:48
7:01
+0:06
20K
12.43 mi11:57:451:27:197:0222:16
7:10
+0:09
Half
13.11 mi12:02:371:32:117:024:52
7:08
-0:02
25K
15.53 mi12:20:191:49:537:0417:42
7:18
+0:10
30K
18.64 mi12:45:132:14:477:1424:54
8:01
+0:43
20M
20.00 mi12:56:542:26:287:1911:41
8:36
+0:35
21M
21.00 mi13:06:212:35:557:259:27
9:27
+0:51
35K
21.75 mi13:12:282:42:027:276:07
8:11
-1:16
23M
23.00 mi13:22:222:51:567:299:54
7:54
-0:17
24M
24.00 mi13:30:172:59:517:307:55
7:55
+0:01
40K
24.85 mi13:37:053:06:397:316:48
7:57
+0:02
25.2M
25.20 mi13:39:573:09:317:312:52
8:19
+0:22
Finish
26.22 mi13:47:223:16:567:317:25
7:17
-1:02

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

6:55 /mi

Average Pace

7:31 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:18

60% of race

Time at Steady Pace

55:38

28% of race

Time at Slower Pace

24:00

12% of race

Average Pace: 7:31 /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 mi10:52:1121:457:0021:45
7:00
#7842
10K
6.21 mi11:13:4143:156:5821:30
6:55
#7601
15K
9.32 mi11:35:291:05:036:5921:48
7:01
#7619
20K
12.43 mi11:57:451:27:197:0222:16
7:10
#7671
Half
13.11 mi12:02:371:32:117:024:52
7:08
#7695
25K
15.53 mi12:20:191:49:537:0417:42
7:18
#7750
30K
18.64 mi12:45:132:14:477:1424:54
8:01
#8266
20M
20.00 mi12:56:542:26:287:1911:41
8:36
#8732
21M
21.00 mi13:06:212:35:557:259:27
9:27
#9197
35K
21.75 mi13:12:282:42:027:276:07
8:11
#9345
23M
23.00 mi13:22:222:51:567:299:54
7:54
#9289
24M
24.00 mi13:30:172:59:517:307:55
7:55
#9331
40K
24.85 mi13:37:053:06:397:316:48
7:57
#9325
25.2M
25.20 mi13:39:573:09:317:312:52
8:19
#9272
Finish
26.22 mi13:47:223:16:567:317:25
7:17
#9186
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi78429309307746(Top 27%)955(Top 8%)955(Top 17%)
10K6.21 mi3.10 mi7601+241864+66864+667410(Top 26%)814(Top 7%)814(Top 15%)
15K9.32 mi3.11 mi7619-18880-16880-167746(Top 27%)955(Top 8%)955(Top 17%)
20K12.43 mi3.11 mi7671-52906-26906-267959(Top 28%)1093(Top 9%)1093(Top 20%)
Half13.11 mi0.68 mi7695-24916-10916-108628(Top 30%)1349(Top 11%)1349(Top 25%)
25K15.53 mi2.42 mi7750-55957-41957-418385(Top 30%)1377(Top 11%)1377(Top 25%)
30K18.64 mi3.11 mi8266-5161208-2511208-25111487(Top 40%)3023(Top 25%)3023(Top 55%)
20M20.00 mi1.36 mi8732-4661434-2261434-22614410(Top 51%)4720(Top 39%)4720(Top 86%)
21M21.00 mi1.00 mi9197-4651662-2281662-22815852(Top 56%)5621(Top 46%)5621(Top 103%)
35K21.75 mi0.75 mi9345-1481751-891751-8913458(Top 47%)4389(Top 36%)4389(Top 80%)
23M23.00 mi1.25 mi9289+561766-151766-159355(Top 33%)2422(Top 20%)2422(Top 44%)
24M24.00 mi1.00 mi9331-421815-491815-4910679(Top 38%)3120(Top 26%)3120(Top 57%)
40K24.85 mi0.85 mi9325+61857-421857-429866(Top 35%)2846(Top 23%)2846(Top 52%)
25.2M25.20 mi0.35 mi9272+531851+61851+67772(Top 27%)1961(Top 16%)1961(Top 36%)
Finish26.22 mi1.02 mi9186+86185118517647(Top 27%)1919(Top 16%)1919(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7746

Females

955

F18-39

955

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7410

Females

814

F18-39

814

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7746

Females

955

F18-39

955

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7959

Females

1093

F18-39

1093

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

8628

Females

1349

F18-39

1349

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8385

Females

1377

F18-39

1377

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

11487

Females

3023

F18-39

3023

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14410

Females

4720

F18-39

4720

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

15852

Females

5621

F18-39

5621

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13458

Females

4389

F18-39

4389

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9355

Females

2422

F18-39

2422

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10679

Females

3120

F18-39

3120

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9866

Females

2846

F18-39

2846

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7772

Females

1961

F18-39

1961

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7647

Females

1919

F18-39

1919

Passing Analysis

Category:
Athletes Passed
1322
Passed By
2666
Net Change
-1344
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7842
5K → 10K34099+241#7842#7601
10K → 15K130148-18#7601#7619
15K → 20K119171-52#7619#7671
20K → Half1741-24#7671#7695
Half → 25K94149-55#7695#7750
25K → 30K80596-516#7750#8266
30K → 20M27493-466#8266#8732
20M → 21M19484-465#8732#9197
21M → 35K27175-148#9197#9345
35K → 23M13276+56#9345#9289
23M → 24M74116-42#9289#9331
24M → 40K8074+6#9331#9325
40K → 25.2M618+53#9325#9272
25.2M → Finish12236+86#9272#9186
TOTALS13222666-1344
📊

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