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BOSTON MARATHON 2026

Erica Nierth

Bib: 24479•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F55-59)
#0 / 951
Top 45%
Race Day Weather
51°/41°F
overcast 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
28:09
3.11 mi
Rank: #22913
Start → 5K
28:09 | 9:04/mi
10K
56:04
6.21 mi
Rank: #22850 (+63)
5K → 10K
27:55 | 9:00/mi
15K
1:23:57
9.32 mi
Rank: #22760 (+90)
10K → 15K
27:53 | 8:59/mi
20K
1:51:58
12.43 mi
Rank: #22529 (+231)
15K → 20K
28:01 | 9:02/mi
HALF
1:58:03
13.11 mi
Rank: #22525 (+4)
20K → HALF
6:05 | 8:56/mi
25K
2:19:57
15.53 mi
Rank: #22292 (+233)
HALF → 25K
21:54 | 9:02/mi
30K
2:48:23
18.64 mi
Rank: #21914 (+378)
25K → 30K
28:26 | 9:10/mi
20M
3:00:49
20.00 mi
Rank: #21747 (+167)
30K → 20M
12:26 | 9:10/mi
21M
3:10:11
21.00 mi
Rank: #21530 (+217)
20M → 21M
9:22 | 9:22/mi
35K
3:16:50
21.75 mi
Rank: #21460 (+70)
21M → 35K
6:39 | 8:54/mi
23M
3:28:00
23.00 mi
Rank: #21282 (+178)
35K → 23M
11:10 | 8:56/mi
24M
3:36:38
24.00 mi
Rank: #21142 (+140)
23M → 24M
8:38 | 8:38/mi
40K
3:44:05
24.85 mi
Rank: #20999 (+143)
24M → 40K
7:27 | 8:43/mi
25.2M
3:47:19
25.20 mi
Rank: #20938 (+61)
40K → 25.2M
3:14 | 9:23/mi
FINISH
3:55:44
26.22 mi
Rank: #20797 (+141)
25.2M → FINISH
8:25 | 8:16/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:58:03
Pace9:01 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:57:41
Pace8:59 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:32:4128:099:0428:09
9:04
-
10K
6.21 mi12:00:3656:049:0227:55
9:00
-0:04
15K
9.32 mi12:28:291:23:579:0127:53
8:59
-0:01
20K
12.43 mi12:56:301:51:589:0128:01
9:02
+0:03
HALF
13.11 mi13:02:351:58:039:016:05
8:56
-0:06
25K
15.53 mi13:24:292:19:579:0121:54
9:02
+0:06
30K
18.64 mi13:52:552:48:239:0228:26
9:10
+0:08
20M
20.00 mi14:05:213:00:499:0312:26
9:10
0:00
21M
21.00 mi14:14:433:10:119:049:22
9:22
+0:12
35K
21.75 mi14:21:223:16:509:046:39
8:54
-0:28
23M
23.00 mi14:32:323:28:009:0311:10
8:56
+0:02
24M
24.00 mi14:41:103:36:389:028:38
8:38
-0:18
40K
24.85 mi14:48:373:44:059:017:27
8:43
+0:05
25.2M
25.20 mi14:51:513:47:199:023:14
9:23
+0:40
FINISH
26.22 mi15:00:163:55:449:008:25
8:16
-1:07

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

8:16 /mi

Average Pace

9:00 /mi

Slowest Pace

9:23 /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

3:02:16

77% of race

Time at Steady Pace

53:28

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:59 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:32:4128:099:0428:09
9:04
#22913
10K
6.21 mi12:00:3656:049:0227:55
9:00
#22850
15K
9.32 mi12:28:291:23:579:0127:53
8:59
#22760
20K
12.43 mi12:56:301:51:589:0128:01
9:02
#22529
HALF
13.11 mi13:02:351:58:039:016:05
8:56
#22525
25K
15.53 mi13:24:292:19:579:0121:54
9:02
#22292
30K
18.64 mi13:52:552:48:239:0228:26
9:10
#21914
20M
20.00 mi14:05:213:00:499:0312:26
9:10
#21747
21M
21.00 mi14:14:433:10:119:049:22
9:22
#21530
35K
21.75 mi14:21:223:16:509:046:39
8:54
#21460
23M
23.00 mi14:32:323:28:009:0311:10
8:56
#21282
24M
24.00 mi14:41:103:36:389:028:38
8:38
#21142
40K
24.85 mi14:48:373:44:059:017:27
8:43
#20999
25.2M
25.20 mi14:51:513:47:199:023:14
9:23
#20938
FINISH
26.22 mi15:00:163:55:449:008:25
8:16
#20797
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi229139130913022585(Top 78%)8914(Top 71%)8914(Top 937%)
10K6.21 mi3.10 mi22850+639078+529078+5222770(Top 78%)9024(Top 72%)9024(Top 949%)
15K9.32 mi3.11 mi22760+909030+489030+4822585(Top 78%)8914(Top 71%)8914(Top 937%)
20K12.43 mi3.11 mi22529+2318913+1178913+11721986(Top 76%)8649(Top 69%)8649(Top 909%)
HALF13.11 mi0.68 mi22525+48913891322406(Top 77%)8848(Top 70%)8848(Top 930%)
25K15.53 mi2.42 mi22292+2338800+1138800+11321327(Top 73%)8330(Top 66%)8330(Top 876%)
30K18.64 mi3.11 mi21914+3788636+1648636+16420306(Top 70%)7894(Top 63%)7894(Top 830%)
20M20.00 mi1.36 mi21747+1678573+638573+6319682(Top 68%)7647(Top 61%)7647(Top 804%)
21M21.00 mi1.00 mi21530+2178474+998474+9917971(Top 62%)6784(Top 54%)6784(Top 713%)
35K21.75 mi0.75 mi21460+708441+338441+3319600(Top 68%)7758(Top 62%)7758(Top 816%)
23M23.00 mi1.25 mi21282+1788355+868355+8618151(Top 63%)7045(Top 56%)7045(Top 741%)
24M24.00 mi1.00 mi21142+1408299+568299+5617707(Top 61%)6857(Top 55%)6857(Top 721%)
40K24.85 mi0.85 mi20999+1438239+608239+6016971(Top 58%)6514(Top 52%)6514(Top 685%)
25.2M25.20 mi0.35 mi20938+618210+298210+2916827(Top 58%)6433(Top 51%)6433(Top 676%)
FINISH26.22 mi1.02 mi20797+1418144+668144+6616815(Top 58%)6412(Top 51%)6412(Top 674%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21
+97ft-345ft

Overall

22585

Females

8914

F55-59

8914

5K→10K

3.1 - 6.2 mi

Top 78%
×5
+79ft-138ft

Overall

22770

Females

9024

F55-59

9024

10K→15K

6.2 - 9.3 mi

Top 78%
×3
+67ft-78ft

Overall

22585

Females

8914

F55-59

8914

15K→20K

9.3 - 12.4 mi

Top 76%
×5
+106ft-86ft

Overall

21986

Females

8649

F55-59

8649

20K→HALF

12.4 - 13.1 mi

Top 77%
×2
+19ft-37ft

Overall

22406

Females

8848

F55-59

8848

HALF→25K

13.1 - 15.5 mi

Top 73%
×4
+66ft-88ft

Overall

21327

Females

8330

F55-59

8330

25K→30K

15.5 - 18.6 mi

Top 70%
×9
+181ft-148ft

Overall

20306

Females

7894

F55-59

7894

30K→20M

18.6 - 20.0 mi

Top 68%
×5
+64ft-50ft

Overall

19682

Females

7647

F55-59

7647

20M→21M

20.0 - 21.0 mi

Top 62%
×8
+106ft-24ft

Overall

17971

Females

6784

F55-59

6784

21M→35K

21.0 - 21.8 mi

Top 68%
×7
+17ft-86ft

Overall

19600

Females

7758

F55-59

7758

35K→23M

21.8 - 23.0 mi

Top 63%
×5
+23ft-63ft

Overall

18151

Females

7045

F55-59

7045

23M→24M

23.0 - 24.0 mi

Top 61%
×6
+12ft-82ft

Overall

17707

Females

6857

F55-59

6857

24M→40K

24.0 - 24.9 mi

Top 58%
×1
+6ft-20ft

Overall

16971

Females

6514

F55-59

6514

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1
+13ft-16ft

Overall

16827

Females

6433

F55-59

6433

25.2M→FINISH

25.2 - 26.2 mi

Top 58%
×2
+22ft-21ft

Overall

16815

Females

6412

F55-59

6412

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2629
Passed By
513
Net Change
+2116
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22913
5K → 10K291228+63#22913#22850
10K → 15K213123+90#22850#22760
15K → 20K27847+231#22760#22529
20K → HALF3026+4#22529#22525
HALF → 25K25017+233#22525#22292
25K → 30K40123+378#22292#21914
30K → 20M17811+167#21914#21747
20M → 21M2236+217#21747#21530
21M → 35K744+70#21530#21460
35K → 23M1846+178#21460#21282
23M → 24M1444+140#21282#21142
24M → 40K1485+143#21142#20999
40K → 25.2M643+61#20999#20938
25.2M → FINISH15110+141#20938#20797
TOTALS2629513+2116
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing